There’s a certain magic to the word “ultramarathon.” It whispers of pushing boundaries, exploring endurance, and venturing beyond the familiar territory of the marathon. For many runners, the gateway to this captivating world is the 50k. It represents a significant leap, a challenge that demands respect, dedication, and, most importantly, a smart approach to preparation. The allure is undeniable, and the popularity of the 50-kilometer distance continues to soar as more runners seek to test their limits on roads and, more commonly, on trails.
But what exactly does tackling a 50k entail? We’re talking about 31.1 miles, or 50 kilometers – just under five miles longer than a standard marathon. While that might not sound like a monumental jump on paper, the reality of ultra distances requires a distinct mindset and a specialized training approach. This isn’t simply about adding a few extra miles to your marathon schedule. Successfully completing a 50k demands specific adaptations: preparing your body for prolonged time on your feet, mastering the unique challenges often presented by trail running (like elevation changes and technical terrain), and steeling yourself against the heightened physiological and mental demands that come with pushing beyond traditional endurance limits.
Achieving success – whether that means simply crossing the finish line with a smile or hitting a specific time goal – hinges on a holistic and intelligently structured preparation strategy. This guide is built around the cornerstone of that strategy: the 50k training plan. But a plan alone isn’t enough. True preparation encompasses meticulous mileage accumulation balanced with targeted strength and conditioning, precise nutrition and hydration planning (both daily and during your runs), careful selection of appropriate gear, strategic recovery and tapering techniques, and the vital cultivation of mental fortitude. It’s the powerful synergy of all these elements, rather than sheer running volume alone, that paves the way for a strong, rewarding, and ultimately successful race experience.
This comprehensive guide is designed for you – the aspiring first-time ultrarunner ready to take the plunge, the seasoned marathoner looking for the next exciting challenge, or any runner seeking a thorough, structured approach guided by a well-designed 50k training plan. We’ll walk you through every critical aspect, leaving no stone unturned. From assessing your readiness and building your foundational training schedule to mastering strength work, dialing in your nutrition, selecting the right gear, preparing for race week, and executing on the big day – it’s all here.
Before we dive in, let’s set some realistic expectations. For amateur runners, completing a 50k often takes between 5 and 8 hours. Elite competitors might dip under the 4-hour mark. These times, however, can vary wildly based on the specific course difficulty, the type of terrain (rocky trails vs. smooth paths), the total elevation gain, and the weather conditions on race day. Remember, the journey of training and the experience of the race itself are just as important as the time on the clock.
Get ready to embark on an incredible adventure. Let this guide be your trusted companion as you navigate the rewarding path towards becoming a 50k ultramarathon finisher.
Before You Start: Assessing Your Readiness for a 50k Training Plan
Embarking on a 50k training plan is an exciting prospect, but diving in without a solid foundation can lead to frustration, burnout, or injury. Before you lace up for that first official training run, an honest self-assessment is crucial. Think of it as checking the specs before building a high-performance engine.
The Honest Self-Assessment: Baseline Fitness Requirements
Most structured 50k training plans, especially those readily available online or in books, operate under the assumption that you meet certain minimum fitness criteria. Ignoring these prerequisites is like trying to build a house on shaky ground. Here’s what you generally need:
- Consistent Running Experience: You should have at least six months of recent, consistent running under your belt. This means running multiple times per week, week after week, not sporadically. This history ensures your muscles, tendons, and ligaments have some basic conditioning to handle increased load.
- Ability to Run Continuously: Can you comfortably run for at least 60 minutes without stopping? This indicates a foundational level of aerobic fitness necessary to begin tackling longer distances.
- Current Weekly Mileage: What’s your average weekly running volume over the past month or two? While specific minimums vary between plans (especially beginner vs. intermediate), having a base of running something consistently is vital. Starting a demanding 50k training plan from zero running is generally not advisable and significantly increases injury risk.
- Previous Race Experience (Helpful, Not Mandatory): Have you completed shorter long-distance races like 10ks, half marathons, or even a full marathon? This experience is beneficial, not just for the physical conditioning but also for understanding pacing, fueling, and the race day environment. However, many runners successfully tackle their first 50k without prior marathon experience, provided they commit fully to a suitable 50k training plan.
Trying to jump into ultra training without this base significantly elevates your risk of overuse injuries like stress fractures, tendonitis, or runner’s knee. Be honest with yourself about where you stand.
Choosing the Right 50k Training Plan Duration for YOU
Once you’ve confirmed you have a reasonable starting point, the next step is selecting the appropriate length for your 50k training plan. You’ll find options ranging widely, typically from 16 weeks on the shorter end up to 20, 24, or even 26 weeks. This isn’t an arbitrary choice; it should be carefully matched to your individual running background and current fitness.
- Longer Plans (20-26 Weeks): These extended timelines are generally recommended for:
- Runners relatively new to endurance running.
- Those making a significant jump in distance (e.g., first time significantly past the half marathon).
- Individuals starting with a lower weekly mileage base.
- Runners with a history of injuries who benefit from a slower build-up. Longer plans provide your body with more gradual exposure to increasing training stress. This allows ample time for crucial physiological and musculoskeletal adaptations – strengthening muscles, tendons, bones, and improving cardiovascular efficiency. The slower progression inherently reduces the risk of overuse injuries, which are incredibly common when training volume ramps up too quickly.
- Shorter Plans (16-18 Weeks): These are typically suitable for:
- Runners who already possess a solid foundation of consistent running (e.g., regularly running 25-30+ miles per week comfortably).
- Those with recent marathon or similar long-distance experience.
- Athletes who can generally handle a slightly faster rate of progression in mileage and intensity without breaking down.
The critical difference isn’t necessarily the peak volume achieved but the rate at which you get there. A longer 50k training plan allows for smaller weekly increases in mileage and often incorporates more cycles of work and recovery (down weeks), facilitating safer adaptation for bodies less accustomed to high training loads. Choose the duration that allows for steady, sustainable progress based on your starting point.
Understanding Different Plan Levels (Beginner, Intermediate, Advanced)
Beyond duration, 50k training plans are frequently categorized by experience level. Recognizing where you fit is key to selecting a plan that challenges you appropriately without overwhelming you.
- Beginner Plans: Designed for those new to ultra distances, perhaps stepping up from the marathon or half marathon with a solid but not massive base. They typically:
- Start with lower weekly mileage (e.g., 20-25 miles per week).
- Peak at moderate weekly mileage (e.g., 40-50 miles per week).
- Focus more on completion and building endurance than speed.
- May have less complex workouts and potentially fewer or less demanding back-to-back long runs.
- Intermediate Plans: Suited for runners with previous marathon or 50k experience, comfortable with higher mileage, and perhaps looking to improve their performance. They often feature:
- A higher starting mileage base (e.g., 30-40 miles per week).
- Higher peak weekly mileage (e.g., 50-65+ miles per week).
- More structured workouts, including tempo runs, intervals, and potentially more challenging back-to-back long runs.
- Advanced Plans: Targeted at experienced ultrarunners aiming for competitive performance or tackling very challenging courses. These demanding plans involve:
- A significant starting mileage base (e.g., 40-50+ miles per week).
- Very high peak weekly mileage (e.g., 70-95+ miles per week).
- Complex and intense workouts, often including demanding long run variations and significant vertical gain if applicable.
Be realistic. It’s far better to successfully complete a beginner plan feeling strong than to struggle through an intermediate plan feeling constantly fatigued or getting injured.
The Crucial Factor: Time Commitment
Ultrarunning training isn’t just about the miles; it’s about the hours. A 50k training plan demands a significant time commitment that extends beyond the runs themselves. Consider:
- Running Time: Weeks will involve multiple runs, including one very long run that can easily consume 3, 4, or even 5+ hours on a weekend day, especially when factoring in travel to trails, prep, and cool-down.
- Strength Training: Add 2-3 sessions per week, typically 30-60 minutes each.
- Cross-Training (Optional but Recommended): Factor in time for supplementary activities.
- Recovery: This includes adequate sleep (7-9 hours is crucial!), stretching, foam rolling, proper nutrition/meal prep, and potentially other modalities like massage.
Estimate the total weekly hours required by a potential plan. Can you realistically fit this into your life alongside work, family, and other commitments? Underestimating the time needed, especially for recovery, is a common pitfall that can compromise the effectiveness of your 50k training plan and lead to burnout or injury. Ensure you have the bandwidth before you commit.
Setting SMART Goals for Your 50k Journey
Finally, define what success looks like for you. Setting clear goals provides motivation and direction for your 50k training plan. Use the SMART framework:
- Specific: What exactly do you want to achieve? (e.g., “Finish my first 50k,” “Complete the trail 50k in under 7 hours,” “Execute my nutrition plan perfectly.”)
- Measurable: How will you track progress and know when you’ve achieved it? (e.g., Finishing the race, looking at the clock, tracking fuel intake.)
- Achievable: Is the goal realistic given your current fitness, experience, and the time you can dedicate? (e.g., Aiming for a 4-hour finish on your first mountainous 50k might not be achievable.)
- Relevant: Does this goal align with your broader running aspirations and personal values? Why is running this 50k important to you?
- Time-bound: When is the race date? Your 50k training plan provides the timeline.
Consider setting both outcome goals (like finishing or a time target) and process goals (like running consistently 4 times per week, completing all strength sessions, practicing fueling on every long run). Process goals focus on the actions within your control during training. Be prepared to adjust your goals as your training progresses based on how your body responds.
Taking the time for this foundational assessment sets you up for a much smoother, more enjoyable, and ultimately more successful experience with your 50k training plan.
The Building Blocks: Designing Your Weekly 50k Training Plan Schedule
With your readiness assessed and goals defined, it’s time to delve into the heart of your preparation: the structure and components of your weekly 50k training plan. Success isn’t built on random runs; it requires a thoughtful combination of different types of training, strategically organized to build endurance, strength, and resilience while managing fatigue.
The Principle of Gradual Progression: The 10% Rule (and its caveats)
The cornerstone of any safe and effective endurance training plan, including your 50k training plan, is the principle of gradual progression. Your body is incredibly adaptable, but it needs time. Trying to do too much, too soon is the fastest route to injury or burnout.
A commonly cited guideline is the “10% rule”: aim to increase your total weekly running volume (mileage or time) by no more than approximately 10% from the previous week. For example, if you ran 30 miles one week, aim for around 33 miles the next.
However, this isn’t a rigid law. Factors to consider:
- Starting Point: At very low mileage, a 10% increase might be tiny and overly conservative. Conversely, at very high mileage, a 10% jump could be substantial and potentially too much stress.
- Intensity: A week with higher intensity workouts (intervals, hard tempos) puts more stress on the body than a week with the same mileage done entirely at an easy pace. Volume increases should be smaller during higher intensity weeks.
- Life Stress: If you have a particularly stressful week at work or home, or if sleep is compromised, be more conservative with mileage increases.
- Down Weeks: The 10% rule applies during build weeks. Structured down weeks (covered later) involve significant decreases in volume.
The spirit of the 10% rule is what matters: increase training load gradually and systematically to allow your body to adapt. And critically, listen to your body. Persistent fatigue, niggling pains, or lack of motivation are signs you might be progressing too quickly, regardless of what the percentage says. Adjust your 50k training plan accordingly.
Establishing Your Weekly Mileage
Your weekly mileage is the bedrock of your endurance. Your 50k training plan will map out a progressive increase in volume over the months leading up to the race.
- Starting Point: Based on your assessment (Section 1), your plan should begin at a weekly volume you can currently handle comfortably.
- Progressive Build: Each week (outside of down weeks), the total mileage or running time will increase slightly, following the principle of gradual progression.
- Peak Weekly Mileage: This is the highest volume week in your 50k training plan, typically occurring 3-4 weeks before your race, before the taper begins.
- Beginner Plans: Might peak around 40-50 miles (65-80 km) per week.
- Intermediate Plans: Might peak around 50-65+ miles (80-105+ km) per week.
- Advanced Plans: Can reach 70-95+ miles (110-150+ km) per week. These are general ranges; your specific plan will vary. The goal isn’t necessarily to hit the highest possible number but to achieve the volume needed to prepare your body for the demands of 31.1 miles, sustainably and injury-free.
- Consistency Over Heroic Efforts: Running consistently week after week, hitting the planned workouts and mileage (within reason), is far more important than occasional massive weeks followed by periods of burnout or injury. Consistency builds fitness layer by layer.
The Long Run: The Undisputed King of Your 50k Training Plan
If there’s one single workout that defines ultramarathon training, it’s the weekly long run. It’s the cornerstone upon which your ability to cover 50 kilometers is built. Its importance in your 50k training plan cannot be overstated.
Why the Long Run Matters SO Much
The long run serves multiple critical purposes:
- Builds Aerobic Endurance: It strengthens your heart and lungs (cardiovascular system) and improves your muscles’ ability to use oxygen efficiently and resist fatigue (muscular endurance).
- Develops Mental Toughness: Spending hours out on the road or trail teaches you to cope with discomfort, boredom, and the mental challenges of pushing through fatigue. It builds immense confidence.
- Strengthens Tissues: The sustained impact helps strengthen bones, tendons, and ligaments, making them more resilient to the stresses of ultra distances.
- Improves Fat Metabolism: Longer, slower runs train your body to become more efficient at tapping into its vast fat reserves for fuel, sparing precious glycogen stores.
- The Perfect Laboratory: Long runs are your dress rehearsal for race day. They provide invaluable opportunities to:
- Practice your nutrition strategy (what foods/gels work, timing, amounts).
- Dial in your hydration plan (fluid intake, electrolytes).
- Test your gear (shoes, vest, clothing) to identify potential issues like chafing or discomfort.
Structuring Your Long Run Progression
Your 50k training plan will feature a steady increase in the duration or distance of your weekly long run.
- Gradual Increase: Each week, the long run typically gets slightly longer, building your endurance incrementally.
- Peak Long Run: This is the longest run you’ll do during the training cycle, usually 3-4 weeks before race day.
- Distance Approach: Many plans build up to a peak long run of 20-25 miles (32-40 km).
- Time-on-Feet Approach: Increasingly popular, especially for trail ultras where pace varies significantly, is peaking based on duration. A common peak is 4-5 hours of running/hiking.
- Why “Time on Feet”? A 20-mile run on flat roads might take 3-4 hours. That same distance on hilly, technical trails could take 5-6 hours or more. Training for a specific duration often better simulates the physiological and mental demands of race day on challenging terrain than focusing solely on distance. Your 50k training plan might specify distance, time, or a combination.
The Power of Back-to-Back Long Runs
A hallmark of many ultra training plans, especially for intermediate and advanced runners, is the inclusion of back-to-back long runs.
- What They Are: Typically involves performing a long run on Saturday, followed by another, slightly shorter (but still substantial) long run on Sunday.
- Purpose: The primary goal is to simulate running on fatigued legs, mimicking the feeling you’ll experience in the later stages of your 50k. It teaches your body to keep going when tired and builds significant mental and physical resilience.
- Implementation: These are demanding workouts and are usually introduced later in the 50k training plan once a solid base is established. They require careful attention to recovery and nutrition.
Long Run Pace: Effort Over Speed
Resist the urge to race your long runs! The primary goal is building endurance and time on your feet, not setting speed records.
- Keep it Conversational: You should be able to hold a conversation comfortably for most of the run. This ensures you’re staying in the aerobic zone.
- Use RPE: Aim for a Rate of Perceived Exertion (RPE) of around 3-5 on a 1-10 scale for the majority of the run. It should feel easy to moderate.
- Focus on Effort: On hilly or technical terrain, focus on maintaining a consistent effort level rather than a specific pace, which will naturally fluctuate.
Save your faster running for dedicated speed or tempo workouts during the week. Racing your long runs compromises recovery and increases injury risk without providing significant additional aerobic benefit.
Terrain Specificity: Train for Your Race!
This is critical, especially if your target 50k is on trails.
- Match the Terrain: Spend a significant portion of your training time, particularly your long runs, on terrain similar to what you’ll encounter on race day. If your race is hilly and technical, training solely on flat roads won’t adequately prepare you. Aim for at least 50% of your volume, and ideally more of your long runs, on relevant trails.
- Practice Hills: Incorporate hills regularly to build climbing strength and practice efficient uphill hiking/running and downhill running techniques.
- Technical Practice: Seek out rocky, rooty, or uneven trails to improve your footwork, balance, and confidence on challenging surfaces.
Adapting your body and skills to the specific demands of the race course during your 50k training plan is crucial for success and enjoyment.

The Supporting Cast: Essential Workout Variety in Your 50k Training Plan
While the long run is king, a well-rounded 50k training plan includes a variety of other workouts throughout the week to target different physiological systems and make you a more robust runner.
Easy & Recovery Runs: The Foundation
These runs form the bulk of your weekly mileage, often making up 80% or more of your total running time.
- Purpose: Build the aerobic base, enhance capillary density (improving oxygen delivery), improve fat utilization, strengthen connective tissues, and facilitate recovery between harder sessions without adding significant stress.
- Pace: Genuinely easy! Conversational pace is key. Think RPE 2-4. If using heart rate, stick to Zone 1 or Zone 2. It should feel relaxed. Many runners make the mistake of running their easy runs too hard.
- Duration: Can range from 30 minutes up to 90 minutes or more, depending on the plan and the day.
Tempo/Threshold/Steady-State Runs: Building Sustainable Speed
These workouts involve running at a “comfortably hard” intensity for a sustained period.
- Purpose: Improve your body’s ability to clear lactate, pushing your lactate threshold higher. This means you can sustain a faster pace for longer before fatiguing significantly. They build mental toughness for holding challenging efforts.
- Pace: Typically feels like an RPE of 7-8. You can speak short sentences but not hold a full conversation. Often corresponds to a pace you could hold for about an hour in a race.
- Structure: Can be done as a continuous run (e.g., 20-40 minutes at tempo pace after a warm-up) or as longer intervals (e.g., 2 x 15 minutes at tempo pace with short recovery). Steady-state runs are slightly less intense (RPE 6-7) but can be longer.
- Frequency: Usually once per week in a typical 50k training plan.
Interval Training/Speed Work: Tuning the Engine
These involve running at high intensities for shorter durations, interspersed with recovery periods.
- Purpose: Boost maximal aerobic capacity (VO2 max), improve running economy (how efficiently you use oxygen at a given speed), and increase top-end speed.
- Relevance for Ultras: While crucial for shorter races, the emphasis on high-end speed work is generally lower in a 50k training plan compared to a 5k or 10k plan. Endurance reigns supreme. However, some speed work can still be beneficial for efficiency and making your cruising pace feel easier.
- Types: Could include shorter hill repeats, track intervals (e.g., 800m repeats), or fartlek (unstructured bursts of speed during a run).
- Frequency: Often optional for beginner 50k plans. Intermediate/advanced plans might include one session per week or every other week. Should be done cautiously to avoid injury.
Hill Workouts: Your Secret Weapon for Trail Ultras
If your 50k involves hills (and most trail ultras do), dedicated hill training is essential.
- Purpose: Builds running-specific strength in your quads, glutes, and calves. Improves power for climbing efficiently. Strengthens muscles for handling the impact of downhill running (eccentric loading). Enhances mental toughness for tackling climbs.
- Types:
- Hill Repeats: Running uphill at a hard but controlled effort for a set duration (e.g., 30 seconds to 3 minutes), jogging or walking back down for recovery, and repeating multiple times.
- Hilly Routes: Simply incorporating rolling or significant hills into your regular easy or long runs.
- Frequency: Incorporate hills into your runs 1-2 times per week.
Strides: Improving Form and Neuromuscular Coordination
Strides (or striders/accelerations) are short bursts of faster running incorporated into easy runs.
- What They Are: Typically 15-30 seconds long (around 100 meters), run at a fast but relaxed pace (about 85-95% of your max speed, not an all-out sprint), focusing on good form – quick cadence, tall posture, relaxed arms. Follow each stride with easy jogging recovery.
- Purpose: Improve neuromuscular coordination (the communication between your brain and muscles), reinforce efficient running mechanics, and develop leg speed without inducing significant fatigue. They help “wake up” the legs after easy runs.
- How to Incorporate: Usually done towards the end of an easy run, 2-3 times per week. Perform 4-8 repetitions.
By incorporating this variety, your 50k training plan addresses multiple facets of fitness, leading to a more well-rounded and resilient runner ready to tackle the diverse demands of an ultramarathon.
Rest & Recovery: The Magic Ingredient in Your 50k Training Plan
In the quest for endurance, it’s easy to focus solely on the workouts. But here’s the crucial secret: fitness gains don’t happen during the run; they happen during the recovery period afterward. Rest isn’t laziness; it’s an active and absolutely critical component of your 50k training plan. Neglecting recovery is neglecting progress.
Why Rest is When You Get Stronger
Training imposes stress on your body – muscle fibers tear slightly, energy stores deplete, hormones fluctuate. It’s during the rest periods between workouts that your body repairs this damage, rebuilds tissues stronger than before, replenishes energy, and makes the physiological adaptations that lead to improved fitness. The equation is simple: Workouts + Rest = Progress. Without adequate rest, you just break down.
Scheduling Dedicated Rest Days
Your 50k training plan should explicitly include complete rest days.
- Frequency: Most plans incorporate 1-3 full rest days per week. This means NO running or strenuous cross-training.
- Purpose: Allows for maximal physical and mental recovery. Gives tissues uninterrupted time to repair. Helps prevent the cumulative fatigue that leads to overtraining.
Don’t view rest days as lost training opportunities; see them as essential investments in future performance and injury prevention.
Active Recovery: What it is and How it Helps
On some non-running days or after hard workouts, active recovery might be beneficial.
- What it is: Very low-intensity, low-impact activities. Examples include gentle walking, easy cycling on a flat road, swimming, light stretching, or foam rolling.
- Purpose: Can help promote blood flow to tired muscles, potentially reducing soreness (DOMS – Delayed Onset Muscle Soreness) and stiffness without adding significant training stress.
- Caution: Keep it genuinely easy and short. The goal is recovery, not another workout. If in doubt, take complete rest.
The Strategic Down Week (Stepback/Recovery Week)
Just as rest days are crucial within the week, recovery weeks are vital within the overall 50k training plan.
- Purpose: Training involves cycles of stress and adaptation. A down week involves a planned, significant reduction in overall training volume (mileage and intensity) to allow your body to fully absorb the training load from the previous weeks, recover more deeply, repair micro-damage, reduce injury risk, and prevent mental burnout. It consolidates fitness gains and prepares you for the next block of harder training.
- Frequency: Typically scheduled every 3rd or 4th week of your 50k training plan.
- Volume Reduction: Mileage is often reduced substantially, perhaps by 40-60% compared to the previous peak week within that cycle. Intensity is also usually lowered.
- Embrace the Ease: Don’t try to make up for the lower volume by running harder. Enjoy the lighter load; your body needs it.
Down weeks are essential for long-term, sustainable progress in ultra training.
Sleep: The Ultimate Recovery Tool
Never underestimate the power of sleep. During sleep, your body releases growth hormone, crucial for tissue repair and muscle building. Consistent, quality sleep (aiming for 7-9 hours per night) is arguably the single most effective recovery tool available. Prioritize it fiercely throughout your 50k training plan, especially during peak weeks.
Listening To Your Body: The Most Important Skill
Your 50k training plan is a guide, not a rigid set of commandments etched in stone. The most crucial skill you can develop as an ultrarunner is learning to listen to your body’s signals.
- Recognize Overtraining Signs: Be aware of persistent fatigue that doesn’t resolve with rest, elevated resting heart rate, poor sleep quality, decreased appetite, frequent illness, irritability or mood changes, nagging aches and pains, or a decline in performance.
- Adjust When Needed: Don’t be afraid to modify the plan. If you’re feeling exceptionally run down, take an extra rest day or swap a hard workout for an easy run. If a minor ache appears, address it immediately (rest, ice, stretch) rather than pushing through and potentially turning it into a major injury.
- Be Flexible: Life happens. If you miss a workout, don’t try to cram it in later. Usually, it’s best to just stick to the plan for the rest of the week and move on.
Becoming attuned to your body’s feedback and having the wisdom to adjust your 50k training plan accordingly is paramount for staying healthy, motivated, and ultimately reaching the starting line strong.
Strength Training: The Unsung Hero of Your 50k Training Plan
While logging miles is the cornerstone of preparing for a 50k, overlooking strength training is a common mistake that can hinder performance and increase injury risk. Think of running as building the engine; strength training builds a robust chassis to support that engine and keep it running smoothly over the long haul. It’s a non-negotiable component of a comprehensive 50k training plan.
Why Runners NEED Strength Training (Dispelling Myths)
Many runners shy away from strength work, fearing it will make them bulky or that they simply don’t have time. However, the benefits are numerous and directly applicable to ultrarunning:
- Injury Prevention: This is perhaps the most significant benefit. Strength training corrects muscle imbalances, improves stability around joints (like knees and hips), and builds resilience in muscles, tendons, and ligaments, making them better able to withstand the repetitive impact forces of long-distance running. Stronger glutes, hips, and core muscles are particularly crucial for preventing common running ailments.
- Improved Running Economy: A stronger body is a more efficient body. Strength training can help you use less energy to maintain a given pace, meaning you can run further or faster before fatiguing. It helps you maintain better form, even when tired.
- Increased Power and Speed: While ultras aren’t sprints, having stronger leg muscles translates to more powerful push-offs, better hill climbing ability, and the capacity to surge when needed.
- Enhanced Durability and Fatigue Resistance: Stronger muscles simply take longer to fatigue. This allows you to maintain better running form deeper into your 50k, reducing the likelihood of late-race breakdown and improving overall performance.
- Better Handling of Downhills: Trail ultras often involve significant downhill running, which places immense eccentric stress on the quads. Strength training prepares your muscles to handle this pounding more effectively, reducing muscle damage and soreness.
Expert ultra coaches increasingly emphasize strength training not just for performance but primarily for building the durability and resilience needed to handle the high training volumes required by a 50k training plan and the race itself.
Key Principles of Strength Training for Ultrarunners
To get the most out of your strength sessions, approach them with the right mindset:
- Focus on STRENGTH, Not Muscular Endurance: You get plenty of muscular endurance stimulus from running. Your gym sessions should focus on building maximal strength and power. This generally means lifting heavier weights (relative to your ability) for fewer repetitions, rather than doing high-rep, low-weight circuits that mimic running.
- Prioritize Quality Movement: Proper form is paramount. It’s better to lift a lighter weight with perfect technique than a heavier weight with sloppy form, which increases injury risk. Focus on controlled movements through the full range of motion.
- Challenge Yourself: The weight or resistance should be challenging enough that the last couple of repetitions in a set feel difficult but are still achievable with good form.
- Consistency Over Complexity: A simple routine performed consistently 2-3 times per week yields better results than an overly complex program done sporadically. Master the fundamentals.
Designing Your Strength Routine: Frequency, Timing, and Structure
Integrating strength work effectively into your 50k training plan requires some planning:
- Frequency: Aim for 2-3 dedicated strength sessions per week during your main training blocks. Allow at least 48 hours of recovery between sessions that heavily target the same muscle groups.
- Scheduling: How you fit strength work around your runs matters for recovery. Common strategies include:
- On Hard Running Days: Perform strength training several hours after your harder run (e.g., run in the morning, lift in the evening). This allows your easy running days to remain truly easy. Prioritize the run if doing both on the same day.
- On Easy Running Days: Some prefer to lift on easier running days, ensuring a clear separation between high-intensity running and lifting.
- On Rest Days: Possible, but be mindful of ensuring you still get adequate total rest. Experiment to see what works best for your schedule and recovery. Avoid heavy lifting the day before a key long run or intense running workout.
- Sets, Reps, and Rest:
- Sets: Typically 2-4 sets per exercise.
- Reps: For building strength, a range of 6-12 repetitions per set is common. Some phases might focus on lower reps (3-6) with heavier weight for maximal strength, while introductory phases or stability exercises might use higher reps (12-15+).
- Rest: Allow adequate rest between sets (e.g., 60-90 seconds) to maintain effort quality.
- Warm-up & Cool-down: Always start with a 5-10 minute warm-up including light cardio and dynamic stretches (e.g., leg swings, torso twists). Finish with static stretching if desired.
- Periodization: Adapt your strength training throughout your 50k training plan:
- Base Phase: Focus on learning technique and building foundational strength, potentially using heavier loads and lower reps.
- Peak Running Phase: Shift focus to maintaining strength while managing increased running fatigue. Reduce frequency (1-2 sessions/week), and possibly decrease volume or intensity slightly.
- Taper Phase: Significantly reduce or eliminate strength training in the final 1-2 weeks before the race to prioritize freshness.
Essential Exercises for Your 50k Training Plan Strength Program
A well-rounded program should target the key muscles used in running, focusing on compound movements and addressing the unilateral nature of the sport.
(Focus on describing the movement and its benefit for runners)
Foundational Compound Lower Body Movements
These exercises work multiple muscle groups simultaneously and are highly functional for running.
- Squats: The king of leg exercises! Strengthens quads, glutes, and hamstrings. Variations include:
- Bodyweight Squats: Master the basic form first.
- Goblet Squats: Holding a weight at your chest, great for learning and core engagement.
- Barbell Back/Front Squats: For heavier loading once form is solid.
- Split Squats: One foot forward, one back – introduces a unilateral element.
- Deadlifts: Builds powerful posterior chain strength (hamstrings, glutes, back) crucial for propulsion and injury prevention. Variations include:
- Conventional Deadlifts: Lifting a barbell from the floor. Requires good technique.
- Romanian Deadlifts (RDLs): Focuses more on hamstrings and glutes, less stress on the lower back if done correctly.
- Trap Bar Deadlifts: Often easier to learn and less stressful on the back than conventional.
- Lunges: Excellent for targeting legs individually, improving balance and stability. Variations:
- Forward Lunges: Classic lunge.
- Reverse Lunges: Often preferred as they can place less stress on the knee joint. Step backward into the lunge.
- Walking Lunges: Moving forward with each lunge.
- Lateral (Side) Lunges: Works muscles in a different plane of motion (hip abductors/adductors).
- Step-Ups: Directly mimic the action of pushing off during running and climbing stairs/hills. Great for glute and quad strength and balance. Can be done with bodyweight or holding weights.
- Hip Thrusts / Glute Bridges: Specifically isolates and strengthens the gluteal muscles – the powerhouse for runners, vital for hip extension, power, and pelvic stability. Can be done with bodyweight, a band, or a barbell across the hips.
The Critical Importance of Unilateral (Single-Leg) Work
Running is essentially a series of single-leg hops. Unilateral exercises force each leg to work independently, addressing strength imbalances that bilateral exercises (like standard squats) can mask. They also significantly challenge balance and stability, crucial for navigating uneven trails. Incorporate:
- Single-Leg Squats (Pistol Squats – advanced, or assisted variations)
- Single-Leg Deadlifts (SLDLs)
- Bulgarian Split Squats (Rear foot elevated)
- Single-Leg Step-Ups
- Single-Leg Glute Bridges
Building a Rock-Solid Core
A strong, stable core is essential for maintaining efficient running posture (especially when fatigued), transferring power between the upper and lower body, and preventing lower back pain.
- Plank Variations: Front planks, side planks. Add challenges like lifting a leg/arm, plank jacks, or shoulder taps once the basic hold is mastered. Builds core endurance.
- Dead Bugs: Excellent for teaching core bracing and control while moving limbs, protecting the lower back. Lie on your back, lower opposite arm and leg slowly while keeping core tight.
- Bird Dog: Improves stability through the torso and hips while coordinating opposite arm and leg movement. Start on all fours, extend opposite arm and leg while keeping back flat.
- Anti-Rotation Exercises: Build strength against rotational forces, enhancing trunk stability. Examples: Pallof Press (using a cable or band), Wood Chops.
- Other Effective Core Exercises: Leg Raises, Hanging Knee Raises, Russian Twists (with or without weight), Bicycle Crunches.
Supporting Upper Body Strength
While secondary to legs and core, upper body strength contributes to good posture, an efficient arm swing (which counterbalances leg movement), and overall stability, especially late in a long race.
- Push-ups: Works chest, shoulders, triceps, and core. Numerous variations exist to adjust difficulty.
- Rows: Strengthens the back muscles (lats, rhomboids) and biceps, crucial for posture. Examples: Dumbbell Rows, Cable Rows, Inverted Rows, Band Rows.
- Pull-ups / Lat Pulldowns: Highly effective back builders. Pull-ups are challenging; use assisted variations or lat pulldown machines initially.
- Overhead Press: Develops shoulder strength. Can be done with dumbbells, kettlebells, or a barbell.
Enhancing Stability, Balance, and Resilience
- Calf Raises: Strengthens calf muscles and Achilles tendons, vital for shock absorption and push-off. Focus on both the up (concentric) and down (eccentric) phases. Eccentric calf drops are particularly good for Achilles health.
- Balance Exercises: Practice standing on one leg, progressing to variations like closing eyes or standing on an unstable surface (use caution).
- Carries: Build core stability, grip strength, and overall robustness. Examples: Farmer’s Walks (carrying heavy weight in each hand), Suitcase Carries (weight in one hand challenges core anti-lateral flexion).
Plyometrics: Use With Caution
Exercises like box jumps or jump squats develop explosive power. However, they are high-impact and should only be introduced cautiously after establishing a solid strength base to avoid injury. They are less critical for most 50k runners compared to foundational strength work.
Sample 50k Training Plan Strength Workouts
Here are two sample full-body routines, focusing on compound movements relevant to runners. Perform 2-3 sets of 8-12 repetitions for most exercises, unless otherwise noted. Adjust weight/resistance accordingly.
Workout A (Example Focus: Squat Pattern, Push, Core Stability)
- Goblet Squats (or Barbell Back Squats if proficient)
- Push-ups (or Dumbbell Bench Press)
- Walking Lunges (holding dumbbells optional)
- Dumbbell Rows
- Plank (Hold for 30-60 seconds, 3 sets)
- Side Plank (Hold each side 30-45 seconds, 3 sets)
- Calf Raises
Workout B (Example Focus: Hinge Pattern, Pull, Unilateral, Core Anti-Rotation)
- Romanian Deadlifts (RDLs) (or Trap Bar Deadlifts)
- Overhead Press (Dumbbell or Barbell)
- Step-Ups (Weighted optional)
- Pull-ups (or Lat Pulldowns / Banded Pull-downs)
- Single-Leg Glute Bridges
- Pallof Press (Using band or cable, 10-15 reps each side)
- Bird Dog (10-12 reps each side, controlled)
Remember to warm up before each session and cool down afterward. Consistency with a simple, effective routine like this, integrated intelligently into your 50k training plan, will pay huge dividends in injury prevention and performance.
Cross-Training: Your Secret Weapon in the 50k Training Plan
While running is undoubtedly the most specific and essential activity in your 50k training plan, incorporating other forms of exercise – known as cross-training (XT) – can be a powerful secret weapon. It offers a way to boost fitness, enhance recovery, prevent injuries, and keep your training fresh and engaging.
Defining Cross-Training (XT) for Runners
Simply put, cross-training involves engaging in physical activities other than running. For ultrarunners preparing for a 50k, these activities are typically chosen for their ability to complement running fitness without adding the same type of repetitive impact stress.
The Multifaceted Benefits of Incorporating XT
Why bother spending time on activities that aren’t running? The benefits are surprisingly diverse:
- Maintain/Build Cardiovascular Fitness Without Impact: Activities like cycling or swimming allow you to work your heart and lungs effectively without the constant pounding associated with running. This can be invaluable for adding aerobic volume safely or maintaining fitness during recovery periods or minor injuries.
- Reduce Repetitive Stress and Injury Risk: Running places specific, repeated stresses on certain joints and tissues. XT activities often work different muscle groups or use muscles in different ways, reducing the overall cumulative load on vulnerable areas and potentially lowering the risk of overuse injuries.
- Strengthen Underutilized Muscles / Correct Imbalances: The highly specific motion of running can lead to imbalances, where some muscles become strong while others remain relatively weak. XT can target these underutilized muscles (e.g., swimming works the upper body, cycling strongly engages the quads), promoting better overall muscular balance and stability, which further contributes to injury prevention.
- Provide Mental Variety and Prevent Burnout: Let’s face it, even the most dedicated runner can experience mental fatigue from a high-volume 50k training plan. Incorporating different activities can break the monotony, keep training enjoyable, and prevent mental burnout.
- Maintain Fitness During Injury Layoffs: If an injury temporarily prevents you from running, appropriate cross-training (like pool running or cycling, depending on the injury) can be a lifeline for maintaining cardiovascular fitness and sanity until you can safely return to running.
How to Effectively Integrate XT into Your 50k Training Plan
Cross-training should supplement, not dominate, your running schedule. Here’s how to fit it in smartly:
- Replace Easy/Recovery Runs: Swap out one or two of your shorter, easier runs per week for a cross-training session of similar duration. This is often the easiest way to incorporate XT without adding excessive overall training stress.
- On Rest Days (Use Caution): Some runners add light XT sessions on their rest days. Be mindful that the purpose of a rest day is rest. If you choose to do XT, keep it genuinely low-intensity and relatively short to avoid compromising recovery. A gentle swim or easy spin might be appropriate, but a hard interval session on the bike defeats the purpose.
- As Supplemental Volume: If you’re prone to injury and need to limit running mileage, XT can be used to add extra aerobic work without the impact.
- Frequency: For most runners following a 50k training plan, 1-3 cross-training sessions per week is a reasonable range. Listen to your body and adjust based on your total training load and recovery capacity.
Top Cross-Training Activities for Ultrarunners
Not all XT activities are created equal in terms of their benefits for runners. Focus on options that offer good cardiovascular stimulus, are low-impact, and potentially engage muscles relevant to running:
- Cycling / Spinning: A fantastic low-impact option. Builds significant strength in the quadriceps and glutes (crucial for running power and hill climbing) and provides an excellent cardiovascular workout. Many elite ultrarunners incorporate cycling heavily.
- Swimming / Pool Running: Offers a full-body, completely non-impact cardiovascular workout. Pool running, using a flotation belt in deep water to mimic running form against water resistance, is particularly good for maintaining running-specific neuromuscular patterns without any impact – ideal for injury recovery or active rest.
- Elliptical Trainer: Provides a low-impact workout that closely mimics the running motion, engaging similar muscle groups. Useful for maintaining running-specific fitness during injury or as supplemental aerobic work.
- Hiking: Especially relevant for trail ultrarunners! Hiking, particularly on steep inclines or while carrying a weighted pack, builds substantial leg strength, endurance, and resilience specific to navigating challenging trails. Many ultra training strategies incorporate purposeful hiking as an efficient way to manage steep climbs during races.
- Yoga / Pilates: While not primarily cardiovascular, these practices significantly enhance flexibility, core strength, balance, and body awareness (proprioception). They can improve posture, aid recovery by releasing muscle tension, and prevent injuries by addressing tightness and improving stability. Choose gentler forms (like Hatha or Restorative) during high-volume training periods.
- Rowing: A demanding, low-impact, full-body exercise that builds both aerobic capacity and muscular strength (legs, core, back).
- Other Options: Activities like rock climbing (builds functional strength and mental focus) or cross-country skiing (excellent winter cardio and strength) can also be beneficial if accessible and enjoyable.
Cross-Training vs. Running: Finding the Sweet Spot
While highly beneficial, it’s crucial to remember that cross-training cannot perfectly replicate the specific stresses and adaptations of running. The principle of specificity dictates that the best way to become a better runner is to run.
View cross-training as a valuable supplement to your 50k training plan, not a replacement for essential running workouts, especially the long run and key intensity sessions. The degree to which fitness from XT transfers to running performance varies depending on the activity. Activities that more closely mimic running mechanics (like pool running or elliptical) might have a more direct carryover than activities like swimming.
Find the balance that works for you. Incorporating 1-2 sessions of complementary XT per week can significantly enhance your overall fitness, durability, and enjoyment of your 50k training plan without detracting from the crucial running-specific work.

Eat Like an Ultrarunner: Mastering Nutrition for Your 50k Training Plan
Training for a 50k pushes your body’s limits, and your engine requires premium fuel to perform optimally and recover effectively. Nutrition and hydration aren’t just afterthoughts in a 50k training plan; they are arguably as critical as the physical training itself. Mastering both your daily fueling habits and your on-the-run strategy is essential for success.
Daily Nutrition Fundamentals: Fueling for Performance and Recovery
What you eat day in and day out provides the energy for demanding workouts and facilitates the crucial recovery and adaptation processes. Consistent, high-quality daily nutrition is the foundation upon which your race-day fueling plan is built.
Energy Needs: You Need to Eat!
Ultrarunning burns a lot of calories. Your energy needs during a high-volume 50k training plan are significantly elevated compared to sedentary individuals or even those training for shorter distances.
- Caloric Requirements: Estimates range from 40-70 kilocalories per kilogram of body weight per day (kcal/kg/day) during heavy training periods. For a 150lb (68kg) runner, that could mean 2700-4700+ calories daily!
- Avoid Underfueling / RED-S: Consuming enough calories is paramount. Chronically underfueling, known as Relative Energy Deficiency in Sport (RED-S), can lead to fatigue, impaired performance, increased injury risk, hormonal disruptions, and long-term health consequences. Don’t intentionally restrict calories severely while undertaking a demanding 50k training plan.
- Focus on Nutrient Density: Prioritize whole, minimally processed foods – fruits, vegetables, whole grains, lean proteins, healthy fats – to maximize the vitamins, minerals, and antioxidants you get alongside your calories.
Macronutrient Strategy for Your 50k Training Plan
Getting enough calories is step one; getting the right balance of macronutrients (carbohydrates, protein, fat) is step two.
- Carbohydrates (CHO): The Primary Fuel Source: Carbs are your body’s preferred and most efficient energy source for moderate to high-intensity exercise, like running. They are stored as glycogen in your muscles and liver.
- Daily Needs: Recommendations for ultra training typically range from 5-8 grams of carbohydrate per kilogram of body weight per day (g/kg/day). Some sources suggest even higher ranges (up to 10-12 g/kg/day) during peak weeks or carb-loading phases.
- Sources: Prioritize complex carbohydrates like oats, brown rice, quinoa, whole-wheat bread/pasta, potatoes, sweet potatoes, beans, lentils, fruits, and vegetables for sustained energy release. Time simpler carbs (like white rice, sports drinks, or fruit juice) strategically around workouts for quicker energy and glycogen replenishment.
- Protein: The Repair Crew: Protein is essential for repairing muscle tissue damaged during training and supporting the adaptations that make you stronger.
- Daily Needs: Endurance athletes require more protein than sedentary individuals. Recommendations often fall between 1.65 to 2.1 g/kg/day.
- Sources: Include lean protein sources throughout the day: poultry, fish, eggs, lean red meat, tofu, tempeh, legumes, Greek yogurt, cottage cheese, protein powders.
- Timing: Consuming protein, often combined with carbohydrates (e.g., 20-30g protein), within an hour or so after exercise can optimize muscle protein synthesis and recovery.
- Fats: Essential for Health and Endurance: Fats are a vital energy source, particularly during lower-intensity, long-duration exercise (crucial for ultras!). They are also necessary for hormone production and absorbing fat-soluble vitamins (A, D, E, K).
- Daily Needs: Focus on healthy unsaturated fats. Specific gram targets are less commonly defined than for carbs and protein, but ensure adequate intake.
- Sources: Avocados, nuts (almonds, walnuts), seeds (chia, flax, pumpkin), olive oil, fatty fish (salmon, mackerel). Limit saturated and trans fats.
Micronutrients: Don’t Forget the Vitamins and Minerals
While macros get the spotlight, micronutrients play crucial roles in energy production, oxygen transport, bone health, and immune function. Pay attention to:
- Iron: Essential for carrying oxygen in the blood. Runners, especially females, can be at risk for deficiency. Include iron-rich foods (red meat, poultry, fish, beans, lentils, spinach).
- Calcium & Vitamin D: Crucial for bone health, preventing stress fractures. Dairy products, fortified foods, leafy greens (calcium); sunlight exposure, fatty fish, fortified foods (Vitamin D).
- Electrolytes (Sodium, Potassium, etc.): While critical during exercise, ensuring adequate daily intake through a balanced diet is also important.
A varied diet rich in whole foods is usually the best way to meet micronutrient needs.
Nutrient Timing: Optimizing Fuel Around Your Workouts
When you eat can impact performance and recovery almost as much as what you eat.
- Pre-Workout: Consume easily digestible carbohydrates 1-3 hours before intense or long runs to ensure adequate fuel availability. Avoid high-fat or high-fiber foods immediately before running, as they can slow digestion and cause GI distress.
- During Workout: (Covered in detail next).
- Post-Workout: The “recovery window” (roughly 30-60 minutes post-exercise) is a prime time to replenish glycogen stores and initiate muscle repair. Aim for a snack or meal containing both carbohydrates and protein. Examples: Chocolate milk, Greek yogurt with fruit and granola, a smoothie with protein powder and banana, chicken and rice.
Consistent, thoughtful daily nutrition provides the platform for successful training and racing within your 50k training plan.
Fueling During Long Runs & Race Day: The Art and Science
As runs extend beyond 60-90 minutes, your body’s stored glycogen begins to dwindle. To maintain energy, prevent the dreaded “bonk,” and keep performing for the hours required to complete a 50k, you must consume fuel during exercise. This is one of the most critical skills to master in your 50k training plan.
Why On-the-Run Fueling is Non-Negotiable
Your body has limited carbohydrate storage capacity (glycogen). During prolonged moderate-to-high intensity running, you burn through this fuel relatively quickly. Once glycogen stores run low, your body is forced to rely more heavily on fat metabolism (which provides energy more slowly) and may start breaking down protein. This leads to:
- Severe Fatigue (“Bonking” or “Hitting the Wall”): A dramatic drop in energy and performance.
- Decreased Pace: You simply can’t maintain intensity.
- Impaired Mental Focus: Decision-making suffers, perceived effort increases.
- Increased Risk of Injury: Poor form due to fatigue.
Consistent fueling during your run prevents this cascade by providing a steady stream of external carbohydrate energy.
Carbohydrate Intake Targets: How Much Per Hour?
This is the cornerstone of ultra fueling. Guidelines based on exercise duration:
- < 75 minutes: Typically no external fuel needed; water/electrolytes are sufficient.
- 1 to 2.5 hours: Aim for 30-60 grams of carbohydrate per hour (g/hr).
- > 2.5 hours (Includes 50k): Aim for 60-90 grams of carbohydrate per hour (g/hr).
Important Notes:
- Grams Per HOUR: These targets are generally given in absolute amounts (g/hr) because the limiting factor is often the gut’s ability to absorb carbohydrates via specific intestinal transporters, not body size.
- Higher Rates (>90g/hr): Some highly trained athletes may tolerate and benefit from even higher rates (up to 120 g/hr), often using fuel sources with multiple types of carbohydrates (e.g., glucose + fructose) that use different transporters. This requires significant gut training and careful experimentation. Start lower and build up.
- Individual Tolerance: These are guidelines. Your personal tolerance might be slightly lower or higher. Practice is key!
(Quick reference: 1 standard energy gel typically contains 20-30g CHO. A typical sports drink bottle might have 30-50g CHO. Check labels!)
Timing Your Fuel: Early and Often
Don’t wait until you feel hungry or tired to start fueling. By then, it’s often too late to fully catch up.
- Start Early: Begin taking in fuel within the first 30-45 minutes of your run.
- Be Consistent: Aim for smaller, regular amounts rather than large amounts infrequently. Consuming fuel every 15-30 minutes is a common strategy.
- Fuel by Time, Not Distance: Especially on trails where pace varies, base your fueling intervals on the clock (e.g., one gel every 30 minutes) rather than miles covered.
Beyond Carbs: The Role of Protein and Fat During Ultras
While carbohydrates are the primary fuel, during events lasting longer than 3-4 hours, small amounts of protein and fat might offer some benefits:
- Protein: Some research suggests consuming small amounts (e.g., 5-10 g/hr) might help mitigate muscle breakdown and potentially reduce perceived fatigue. Its direct performance benefit is less clear than carbs.
- Fat: Provides caloric density and can help combat “flavor fatigue” from sugary fuels. However, fat digests slowly and consuming too much can lead to GI distress. Introduce carefully and in moderation.
For a 50k, focusing primarily on meeting your carbohydrate targets is generally the most effective strategy.
Calorie Targets Per Hour
While carb grams are the main focus, thinking in calories can also be helpful. Aiming for 150-300 kcal per hour is a common range for ultras, potentially up to 400 kcal/hr for very long events or larger athletes. Again, individualize based on intensity, body size, and tolerance discovered during your 50k training plan long runs.
Fuel Sources: Gels, Chews, Drinks, Bars, and Real Food
You have many options for getting those carbs in!
- Sports Nutrition Products (Gels, Chews, Drinks, Bars):
- Pros: Specifically formulated for easy digestion and rapid energy delivery. Convenient packaging. Predictable nutrient content (check labels!). Often contain electrolytes.
- Cons: Can lead to “palate fatigue” (getting sick of the same sweet taste). Can be expensive. Some find certain textures unappealing.
- Real Food Options:
- Pros: Combats palate fatigue. Provides wider nutrient variety (some protein/fat). Can be psychologically satisfying. Often cheaper.
- Cons: Can be less portable. Digestibility varies (choose carefully!). Nutrient content less precise. Potential for spoilage in heat.
- Popular Choices: Bananas, boiled & salted potatoes, dates, pretzels, PB&J sandwiches (white bread often preferred for lower fiber during exercise), rice cakes, fruit puree pouches, fig bars, salted nuts (in moderation). Choose options low in fiber and fat for easier digestion during the run.
- The Hybrid Approach: For most ultrarunners, using a combination is the most effective and sustainable strategy. Rely on sports products for consistent core carb/electrolyte delivery, and supplement with preferred real food items for variety and satiety.
“Training The Gut”: The MOST Critical Nutrition Practice
Your digestive system is trainable, just like your muscles! Trying to suddenly consume 60-90g of carbs per hour on race day without practice is a recipe for GI disaster (nausea, bloating, cramping, diarrhea).
- Practice is Non-Negotiable: Use EVERY long run in your 50k training plan as an opportunity to practice your exact race-day fueling strategy.
- Start Low, Go Slow: Begin practicing with intake at the lower end of your target range (e.g., 50-60 g/hr) and gradually increase the amount over subsequent long runs as your tolerance improves.
- Simulate Race Conditions: Practice fueling at your anticipated race intensity and using the gear (vest, bottles) you’ll use on race day.
- Experiment and Refine: Try different products, flavors, real foods, and timing intervals during training to discover what works best for your individual system and preferences.
- The Golden Rule: NOTHING NEW ON RACE DAY! This applies most emphatically to nutrition and hydration. Stick with what you’ve practiced and know works.
Hydration Strategy: Staying Ahead of the Curve
Fluid and electrolyte balance is just as critical as fueling for performance, safety, and preventing GI issues during your 50k.
Daily Hydration: The Foundation
Start every day well-hydrated.
- Sip fluids consistently throughout the day (water, herbal tea, diluted juice).
- Monitor your urine color – aim for pale yellow. Dark yellow indicates dehydration.
- Don’t wait until you’re thirsty; thirst is often a late indicator of dehydration.
Hydration During Exercise: How Much Fluid?
Maintaining fluid balance during prolonged running is crucial for temperature regulation, nutrient transport, and cardiovascular function.
- General Guidelines: Aim to consume 400-800 milliliters (ml) of fluid per hour, which is roughly 13.5-27 fluid ounces per hour.
- Highly Individual: Needs vary significantly based on:
- Sweat Rate: Some people sweat much more than others (can range from 400 to over 2400 ml/hr!). You can estimate your sweat rate by weighing yourself before and after a run (accounting for fluid consumed).
- Conditions: Hotter, more humid weather increases sweat loss dramatically.
- Intensity: Running harder increases fluid needs.
- Sip Regularly: Drink small amounts frequently (e.g., every 10-20 minutes) rather than chugging large volumes infrequently, which can slosh around and potentially cause GI upset.
Electrolytes: The Spark Plugs (Especially Sodium!)
When you sweat, you don’t just lose water; you lose vital minerals called electrolytes. Sodium is the most critical electrolyte lost in significant quantities through sweat.
- Why They Matter: Electrolytes are essential for:
- Maintaining proper fluid balance between cells and bloodstream.
- Enabling nerve impulse transmission.
- Facilitating muscle contractions.
- Risks of Depletion: Losing too much sodium without adequate replacement can lead to:
- Muscle cramping.
- Impaired performance.
- Nausea, dizziness, fatigue.
- In severe cases of overhydration with plain water and significant sodium loss: Hyponatremia. This is a dangerous condition where blood sodium levels become dangerously low, potentially causing confusion, seizures, coma, and even death. It’s a serious concern in endurance events.
Sodium Intake Targets During Ultras
Replacing sodium losses is crucial.
- General Guidelines: Aim for 300-600 milligrams (mg) of sodium per hour. Another common guideline is to aim for fluids containing 500-700 mg of sodium per liter (approx. 150-200mg per 500ml bottle).
- Higher Needs: For longer events, hot conditions, or if you are a known heavy or “salty” sweater (notice salt crusts on skin/clothing), higher intake rates of 700-900 mg of sodium per liter (or even more) might be necessary.
- Personalization: Pay attention to how you feel and perform with different intake levels during training. Consider a sweat test for more precise data if experiencing issues.
Sources of Electrolytes
You can get electrolytes from various sources during your run:
- Formulated Sports Drinks: Many contain carbohydrates and electrolytes (check labels for sodium content – it varies widely).
- Electrolyte Tablets/Capsules: Designed to be added to water (e.g., Nuun, Skratch, SaltStick Caps). Allow you to separate hydration/electrolytes from carbohydrate fuel if desired.
- Salt Tabs: Concentrated sodium capsules (use according to directions).
- Salty Foods: Pretzels, salted nuts, broth at aid stations.
Be aware of the concentration in your chosen products to ensure you’re meeting your targets.
The Interplay: Balancing Fuel, Fluids, and Electrolytes
These three elements are deeply interconnected and must be managed together:
- Carbohydrate absorption requires adequate fluid. Highly concentrated carb solutions without enough water can slow digestion and cause GI distress.
- Drinking excessive plain water without sufficient electrolytes (especially sodium) increases the risk of hyponatremia.
- Your plan needs to deliver the right balance of all three components. This might mean using an electrolyte drink alongside gels, or taking salt caps with plain water and separate fuel sources.
Practice Your Hydration Too!
Just like fueling, you must practice your hydration and electrolyte strategy during your 50k training plan long runs. Test your fluid intake tolerance, experiment with different electrolyte products and amounts, and use the same bottles/flasks/vest you plan to use on race day. Find the system that keeps you feeling good and performing well over several hours.
Mastering nutrition and hydration is a continuous learning process, but investing the time and effort during your 50k training plan is one of the most significant factors in ensuring a successful and enjoyable race day.

Gear Up for Success: Choosing the Right Kit for Your 50k Training Plan and Race
Heading out for an ultramarathon, especially one on trails, requires more gear than your typical road run. Selecting the right equipment isn’t just about comfort; it’s crucial for performance, safety, and often, meeting race requirements. From shoes to hydration systems to mandatory safety items, let’s break down the essential gear for your 50k training plan and race day.
Trail Running Shoes: Your Foundation
Your feet will carry you 31.1 miles, often over challenging terrain. Choosing the right shoes is arguably the single most important gear decision you’ll make. Trail running shoes differ significantly from their road counterparts.
Critical Differences: Trail Shoes vs. Road Shoes
Trail shoes are specifically engineered for off-road conditions:
- Outsole Lugs: Feature deeper, more aggressive tread patterns (lugs) designed to grip dirt, mud, rock, and roots, providing much better traction than road shoes.
- Protection: Often include features like:
- Rock Plates: Rigid or semi-rigid layers embedded in the midsole to protect your feet from sharp rocks and roots.
- Toe Bumpers: Reinforced material around the front of the shoe to guard against stubbing toes.
- Upper Durability: Made with more robust, abrasion-resistant materials (like tighter-weave mesh or synthetic overlays) to withstand scrapes from trail debris.
- Stability Features: May have a slightly stiffer construction or features designed to provide more stability on uneven, unpredictable surfaces.
How to Choose the Right Trail Shoe for Your 50k
Selecting the perfect trail shoe is highly personal, but consider these key factors:
- Fit: The #1 Priority: This trumps all other features.
- Toe Box Room: Ensure enough space for your toes to splay naturally and accommodate foot swelling during long runs (a common guideline is allowing a thumb’s width between your longest toe and the shoe’s end).
- Heel Lock: Your heel should feel secure without lifting or slipping.
- Midfoot Support: Should feel snug and supported without being constricted.
- Try Them On: Always try shoes on, preferably later in the day when feet are slightly larger. Wear the type of socks you’ll run in. Consider wide versions if you have wider feet.
- Terrain Specificity: Match the shoe to the likely conditions of your race course and training trails.
- Smooth/Buffed Trails: Might allow for shoes with less aggressive lugs and potentially more cushioning.
- Technical/Rocky Trails: Require shoes with excellent grip, robust protection (rock plates, durable uppers), and good stability.
- Muddy/Soft Trails: Need deep, widely spaced lugs that shed mud effectively.
- Mixed Terrain/Road-to-Trail: Hybrid shoes offer a compromise.
- Cushioning Levels: Trail shoes offer a spectrum:
- Minimal: Less padding, promotes “ground feel,” requires strong feet.
- Moderate: Traditional trail shoe feel, balanced cushioning and responsiveness.
- Maximal: Thick midsoles (like those often found in Hoka or Altra Olympus models) designed to absorb impact over long distances, potentially reducing fatigue and joint stress. Very popular for ultras. However, some find max cushion shoes feel less stable or nimble on highly technical terrain. The optimal level is highly dependent on personal preference.
- Heel-to-Toe Drop: The height difference between the heel and forefoot (typically 0mm to 12mm+).
- It influences biomechanics. Unless making a deliberate transition, it’s generally advisable to choose trail shoes with a drop similar to your current running shoes to minimize injury risk. Zero-drop shoes (like Altra) require adaptation, especially for the calves and Achilles.
- Protection Needs: Consider how much underfoot (rock plate) and toe protection you need based on the terrain.
- Grip/Lug Pattern: Look at the depth, shape, and spacing of the lugs, as well as the rubber compound (some offer better wet rock grip, others prioritize durability). Vibram Megagrip is a well-regarded outsole compound.
Popular Ultra Shoe Models (Examples)
While highly individual, some frequently recommended models suitable for 50k distances include: Hoka Speedgoat, Altra Lone Peak, Altra Olympus, Saucony Peregrine, Brooks Cascadia, Salomon Speedcross (aggressive tread), Salomon Ultra Glide (more cushioned). Do your research, read reviews, but prioritize personal fit and comfort.
The Importance of Rotation and Breaking In Shoes
- Rotate Shoes: If possible, having two pairs of trail shoes to alternate between can allow the cushioning to recover between runs and may even reduce injury risk by varying stresses slightly.
- Break Them In: NEVER wear brand new, untested shoes for your 50k race! Wear them on several training runs, including at least one long run, to ensure they fit well, don’t cause blisters or hotspots, and feel comfortable over extended periods.
Hydration Systems: Carrying Your Lifeline
Staying hydrated during a 50k is non-negotiable. You need a comfortable and efficient way to carry fluids and have easy access to them.
Options: Vests, Packs, Belts, Handhelds
- Hydration Vests: The overwhelming favorite for ultrarunners. These fit like a vest and offer:
- Capacity: Typically hold soft flasks (usually 500ml each) in pockets on the front straps for easy access, and often have a sleeve in the back for a larger hydration reservoir/bladder (1.5-2L).
- Comfort & Stability: A good vest fits snugly (often sized like clothing) and uses adjustable straps to minimize bouncing and prevent chafing.
- Storage: Provide numerous pockets for fuel, phone, keys, mandatory gear, and extra layers. Capacities vary (e.g., 5L, 8L, 12L). Choose based on your needs.
- Popular Brands: Salomon (ADV Skin series), Ultimate Direction (Ultra Vesta/Vest), Nathan, Camelbak, UltrAspire.
- Waist Packs/Belts: Suitable for shorter training runs or races with frequent aid stations where minimal gear/fluid is needed. Can carry small bottles and essentials.
- Handheld Bottles: Convenient for shorter runs or to supplement vest capacity. Often feature straps for secure carrying and small pockets.
Determining Your Capacity Needs
- Race Rules: Many ultras mandate a minimum hydration carrying capacity, often 1 to 1.5 liters, to ensure self-sufficiency between aid stations. Check your race rules!
- Aid Station Spacing: Longer distances between aid points require carrying more fluid.
- Weather: Hot conditions necessitate carrying significantly more fluid than cool conditions.
For a 50k, a hydration vest offering 1-2L capacity is generally the most practical and versatile option. Practice running with your chosen system fully loaded during training!
Clothing: The Art and Science of Layering
Choosing the right clothing is vital for comfort, temperature regulation, and safety during an ultra that can span many hours and potentially changing weather conditions. The key principle is layering.
The Layering System: Base, Mid, Outer
Wearing multiple thin layers allows you to adapt by adding or removing items as your exertion level or the weather changes.
- Base Layer: The layer worn directly against your skin. Its primary job is moisture management – wicking sweat away to keep you dry.
- Materials: MUST be synthetic (polyester, nylon) or merino wool. NO COTTON! Cotton absorbs moisture, stays wet, chills you, and dramatically increases the risk of chafing and hypothermia.
- Merino Wool: Excellent temperature regulation (warm when cool, cool when warm), stays warm even when damp, naturally odor-resistant.
- Synthetics: Generally wick moisture faster and dry more quickly.
- Mid Layer (Insulation): Worn over the base layer for added warmth in cooler conditions.
- Examples: Lightweight fleece jackets or vests, tops made from gridded or breathable insulating fabrics (“active insulation”). Should still be breathable to avoid overheating during exertion.
- Outer Layer (Shell): Protects you from wind and precipitation.
- Wind Jacket: A lightweight, packable windproof jacket is highly versatile.
- Waterproof Jacket: Often mandatory race gear. Must be truly waterproof (not just water-resistant) and breathable, typically featuring taped seams and an integrated hood. Essential for protection in rain or harsh weather. Waterproof trousers may also be required depending on the race/conditions.
Fabric Matters: Choose Wisely
Prioritize fabrics that are:
- Lightweight: Reduces carrying burden.
- Breathable: Allows perspiration vapor to escape.
- Quick-Drying: Helps you stay comfortable if you get wet from sweat or rain.
- Moisture-Wicking: Pulls sweat away from your skin.
- Chafe-Resistant: Look for flat seams or seamless construction, especially in areas prone to friction.
Essential Clothing Items for Your 50k Training Plan & Race
Beyond the layers, don’t forget:
- Technical Running Shirt(s): Short sleeve or long sleeve, depending on conditions (wicking material).
- Running Shorts or Tights: Choose based on preference and temperature. Consider pocket needs for fuel or phone. Compression options are also available.
- Quality Running Socks: Absolutely crucial for blister prevention. Made from synthetic blends or merino wool. Again, NO COTTON. Consider carrying a spare pair in wet conditions.
- Sports Bra: Supportive and made from wicking material.
- Warm Hat (Beanie): Often mandatory, essential for heat retention in cool/cold conditions.
- Gloves: Also often mandatory, keeps hands warm and functional.
- Buff / Neck Gaiter: Extremely versatile – can be worn as a neck warmer, headband, hat, sun shield, dust mask.
Why Layering = Safety in Ultras
The layering system isn’t just about comfort; it’s a critical safety measure, especially in mountains or remote areas where weather can change rapidly. Being able to adjust your insulation and protection helps manage your core body temperature effectively. This prevents:
- Overheating: Which accelerates dehydration and impairs performance.
- Hypothermia: A serious risk if you slow down significantly, get injured, or are stopped while wet from sweat or rain, particularly in cool or windy conditions.
Carrying mandatory layers like thermal garments and waterproofs is essential, even if the forecast looks good. Conditions can change, and unexpected delays or emergencies can happen.
Mandatory Gear: Understanding Why It’s Required
Many 50k races, particularly trail and mountain events, have a specific list of mandatory gear that all participants must carry throughout the entire race.
The Purpose: Runner Safety and Self-Sufficiency
These requirements aren’t arbitrary inconveniences. They are implemented to ensure you have the basic equipment needed to stay safe and manage potential problems in environments where conditions can be challenging and help might be delayed. Failure to carry mandatory gear can lead to time penalties or disqualification, often verified via kit checks before or during the race.
Common Mandatory Items (List with brief explanations)
- Waterproof Jacket: This isn’t just any rain jacket. Races typically specify one with fully taped seams and an integrated hood. This ensures genuine waterproofness and wind protection, crucial for preventing hypothermia if the weather turns bad or you have to slow down or stop unexpectedly. Think of it as your primary safety shield against the elements.
- Waterproof Pants/Trousers: Similar to the jacket, these might be required, especially in mountain environments or races known for potentially severe weather. They provide full-body protection from rain and wind, further reducing the risk of hypothermia.
- Thermal Long-Sleeved Top: Often required to be made of synthetic material or merino wool (not cotton!), this layer provides essential insulation. Even if you start warm, conditions can change, or an unexpected stop (like twisting an ankle) could leave you immobile and quickly getting cold. This layer traps body heat effectively.
- Thermal Long Pants or Tights: The lower body equivalent of the thermal top. Leg muscles generate a lot of heat while running, but if you stop, they cool down fast. This layer provides necessary insulation for your legs in emergencies or cold conditions.
- Headlamp (plus Spare Batteries or Backup Lamp): Absolutely essential if any part of your race might occur during darkness (early morning starts, running past sunset, or slower paces leading to a late finish). Race rules usually demand spare batteries or a completely separate backup light source, ensuring you won’t be left stranded in the dark if your primary light fails. Adequate brightness (lumens) is key for navigating trails safely at night.
- Minimum Hydration Capacity (e.g., 1-1.5 Liters): This rule ensures you can carry enough fluid to stay hydrated between aid stations, which can sometimes be far apart on ultra courses. It promotes self-sufficiency and prevents dangerous dehydration, especially in warm weather or remote sections. This capacity is usually achieved via flasks in your vest or a bladder.
- Mobile Phone: For emergency communication. It should be fully charged before the start and kept in a waterproof bag to protect it from rain or sweat. You might need it to call for help for yourself or another runner, or for race organizers to contact you. Ensure you have emergency contacts and potentially the race director’s number saved.
- Whistle: A simple but vital piece of safety gear. Six short blasts is a universal distress signal. It’s far more effective than shouting for attracting attention if you are injured, lost, or off the main trail.
- Survival Blanket or Bivy Bag: These are lightweight, compact, metallic-looking sheets or bags designed to reflect body heat back to you. If you become injured, hypothermic, or unexpectedly stopped for a long period (benighted), this item can be a lifesaver by providing crucial emergency insulation and preventing further heat loss.
- Basic First-Aid Kit (including specific bandage): You need the ability to treat minor cuts, scrapes, and blisters on the trail. Race rules often mandate specific items, most commonly a compression bandage (like an ACE wrap) suitable for managing sprains or potentially even snake bites, depending on the region. Familiarize yourself with basic first aid.
- Emergency Food Reserve: This is in addition to the fuel you plan to consume during the race. It’s a small reserve of extra calories (like an energy bar or gel) mandated in case you get lost, are delayed significantly between aid stations, or encounter an emergency situation where extra energy is needed.
- Reusable Cup: Many ultramarathons (especially trail races) are now “cup-less” to reduce waste. This means aid stations will provide water and drinks, but you need your own cup (usually a small, collapsible silicone one) to drink from. It’s often attached to your pack for easy access.
- Warm Hat and Gloves: Essential for conserving body heat, particularly in cold, windy, or wet conditions, or if you have to stop running. A significant amount of heat can be lost through your head and hands. These are often mandatory items, even if the forecast seems mild.
Showtime! Executing Your 50k Training Plan on Race Day
This is it. All the miles logged, the early mornings, the strength sessions, the careful nutrition planning during your 50k training plan – it all comes down to this. Race day is where you put your preparation into action. Stay calm, trust your training, and execute your plan.
The Morning Of: Pre-Race Rituals
Stick to the routine you practiced before your long runs. Wake up with enough time to avoid rushing. Eat your practiced pre-race meal at the planned time. Get dressed in your chosen race kit, apply anti-chafe lubricant generously, and do a final check of your gear and vest. Travel to the start line, allowing ample time for parking, bathroom stops, and soaking in the pre-race atmosphere.
The Start Line: Managing Nerves and Excitement
It’s normal to feel a mix of nerves and excitement. Position yourself realistically in the starting corral based on your expected pace – don’t get caught up right at the front unless you’re truly competing for the win. Take some deep breaths, remind yourself of your training, and visualize a strong, steady start.
Pacing Strategy: The Art of the Ultra Start
RULE #1: START CONSERVATIVELY! This is perhaps the single most crucial piece of advice for your first 50k. The adrenaline is pumping, everyone seems to be flying, but resist the urge to go out too fast. It’s a long day, and miles banked too quickly early on will demand a heavy toll later. Focus on EFFORT, not pace, especially on trails where terrain dictates speed. Maintain a comfortable, conversational effort level in the early stages. If you use heart rate or RPE (Rate of Perceived Exertion) in training, stick to your planned easy/moderate zones. Walk the uphills early and often – it’s not a sign of weakness, it’s smart ultrarunning strategy! Conserve energy on the climbs so you can run the flats and manageable downhills effectively. Many experienced ultrarunners incorporate a run/walk strategy from the very beginning. Run your own race. Stick to your plan, your effort level, regardless of what others around you are doing.
Implementing Your Nutrition and Hydration Plan
Now is the time to execute the fueling and hydration strategy you practiced meticulously during your 50k training plan. Start fueling and hydrating early, typically within the first 30-60 minutes, according to your schedule. Don’t wait until you feel hungry or thirsty; by then, it might be too late. Set timers on your watch if it helps you remember to take in calories or fluids regularly (e.g., every 20-30 minutes). Be disciplined. Follow your plan even if you don’t feel the need early on. Consistent energy and fluid intake are key to preventing crashes later in the race.
Navigating Aid Stations Like a Pro
Aid stations are oases, but spending too long at them can add significant time to your race. Approach them with a plan: Know what’s available beforehand if possible (check the race guide). Have a mental checklist: Refill flasks/bladder? Grab specific food items? Reapply lube? Use the bathroom? Be efficient. Get what you need, thank the incredible volunteers, and get moving again. Avoid lingering unless you genuinely need a longer break to address an issue. Use aid stations as quick checkpoints to assess how you’re feeling and make minor adjustments to your plan if necessary.
Mental Fortitude: Winning the Battle Within
Ultramarathons are as much a mental challenge as a physical one. Your mind will likely go through highs and lows. Develop strategies to navigate the tough spots: Break the race down into smaller, manageable segments. Focus only on getting to the next aid station, the next landmark, or even just the next mile marker. Don’t dwell on the total distance remaining. Deal with the low points. Acknowledge when you’re feeling down or tired, but don’t let it consume you. Try to troubleshoot – do you need calories? Fluids? Salt? A brief walk break? Often, addressing a physical need can lift your mental state. Use positive self-talk and mantras. Remind yourself of your strength, your training, and your reason for being out there (“You trained for this,” “Strong and steady,” “Just keep moving forward”). Draw energy from your surroundings – the scenery, fellow runners, cheerful volunteers. Smile – it can actually help improve your mood. Maintain a problem-solving mindset. When issues arise (and they likely will), focus on finding solutions rather than dwelling on the problem.
Troubleshooting Common Race Day Challenges
Be prepared to handle common issues that can crop up during a 50k:
- GI Distress (Nausea, Stomach Upset): Slow down your pace. Switch to blander foods or liquids if solids aren’t sitting well. Check if you need more water to dilute concentrated fuels or if you need more electrolytes. Sometimes just backing off the intensity for a while allows your stomach to settle.
- Chafing: Address it early! Apply more lubricant at the first sign of irritation. Carry some in your pack or use what’s available at aid stations.
- Blisters: If you feel a hot spot, try to address it at the next aid station if possible (tape, blister plaster). Ensure your socks are dry and your shoes aren’t laced too tight or too loose. Carry your preferred blister treatment.
- Muscle Cramps: Often related to dehydration, electrolyte imbalance, or muscular fatigue. Ensure you’re sticking to your hydration and electrolyte plan. Gentle stretching or slowing your pace might help. Sometimes, taking in extra sodium can alleviate cramping.
- Hitting the Wall / Bonking: This usually means you’ve depleted your glycogen stores. Get calories in immediately – gels, chews, sugary drinks, whatever you can tolerate. Slow down significantly or walk until you start to feel energy levels return. Learn from it and adjust your future fueling strategy.
- Changing Weather: Use your layers! Add or remove clothing as needed to stay comfortable and avoid overheating or getting chilled. Use your waterproof jacket if it starts raining.
The Finish Line: Savoring the Achievement
As you approach the final miles, draw on your reserves. Think about all the training that got you here. Soak in the atmosphere, thank the volunteers and spectators cheering you on. When you see that finish line, let the emotions flow. You pushed your limits, you executed your 50k training plan, and you achieved something incredible. Cross the line, celebrate your journey, and be proud of becoming an ultramarathoner!
You Did It! Recovering Smart After Your 50k Training Plan Culmination
Congratulations, ultramarathoner! Crossing the finish line is a monumental achievement, but the journey isn’t quite over. Proper recovery after completing your demanding 50k training plan and race is crucial for letting your body heal, minimizing soreness, and setting yourself up for future running endeavors without injury.
Immediately Post-Race (The First Few Hours)
- Keep Moving Gently: Avoid sitting or lying down immediately if possible. Gentle walking helps flush metabolic waste products from your muscles and can reduce stiffness later.
- Refuel: Your muscles are primed to replenish glycogen stores. Aim to consume a mix of carbohydrates and protein within 30-60 minutes of finishing. Chocolate milk, a recovery shake, a banana with peanut butter, or a simple meal can work well.
- Rehydrate: Start sipping fluids – water, electrolyte drinks – to replace what you lost through sweat. Continue hydrating steadily over the next several hours.
- Get Warm and Dry: Change out of your sweaty race clothes into something dry and warm as soon as possible to avoid getting chilled.
- Elevate Your Legs: If you have the opportunity later, elevating your legs can help reduce swelling.
The First Few Days: Prioritizing Rest and Repair
- SLEEP!: Your body does most of its repairing during sleep. Prioritize getting plenty of quality sleep in the days following your race. Naps can help too!
- Nutrition for Repair: Continue focusing on nutritious food. Ensure adequate protein intake to help repair muscle tissue, plenty of complex carbohydrates to fully replenish glycogen, and healthy fats. Anti-inflammatory foods (like fruits, vegetables, nuts, fatty fish) might be beneficial.
- Active Recovery (Light): Very gentle movement like walking or swimming can promote blood flow and potentially reduce soreness (DOMS – Delayed Onset Muscle Soreness), which often peaks 24-72 hours post-race. Avoid strenuous activity.
- Listen to Your Body: Expect to feel tired and sore. Don’t push yourself. Rest is paramount. Let soreness be your guide – if something hurts beyond typical muscle aches, pay attention.
- Optional Comfort Measures: Gentle foam rolling, massage (wait a day or two), or contrast baths (alternating hot and cold water) might provide some relief for sore muscles, but listen to what feels good for your body.
The Following Weeks: Gradual Return to Activity
- Don’t Rush Back: Resist the urge to jump back into running too soon, even if you feel okay after a few days. Your muscles, tendons, ligaments, and nervous system need more time to recover fully than you might realize. Take at least one full week completely off running, possibly two, depending on how you feel and the race intensity.
- Easy Does It: When you do start running again, begin with very short, very easy runs. Focus on enjoying the movement, not on pace or distance.
- Rebuild Gradually: Slowly and cautiously increase your running frequency and duration over several weeks. Don’t try to jump right back into the volume or intensity you were doing before the taper.
- Monitor for Pain: Pay close attention to any aches or pains that linger or worsen. Now is not the time to push through potential injuries.
Dealing with the Post-Ultra Blues
It’s surprisingly common to feel a bit flat, moody, or unmotivated in the days or weeks after achieving a huge goal like finishing a 50k. You’ve been intensely focused on your 50k training plan for months, and suddenly it’s over.
- Acknowledge It: Understand that it’s a normal reaction.
- Reflect and Appreciate: Take time to reflect on your accomplishment and the entire journey. Look at photos, talk to friends/family about it.
- Set New (Smaller) Goals: Maybe focus on enjoying unstructured running, trying a different activity, or setting a non-running goal for a little while. Don’t feel pressured to immediately sign up for another race.
- Stay Connected: Keep in touch with your running buddies or the running community. Sharing experiences can help.
Beyond the Finish Line: Continuing Your Ultra Journey After This 50k Training Plan
Finishing your first 50k is often just the beginning of a longer ultrarunning adventure. Taking the time to reflect on your experience and consider what’s next can help you continue to grow as a runner.
Analyzing Your Race: What Went Well, What Could Improve?
Once the dust settles, take an honest look back at your race:
- Pacing: Did you start too fast? Did you manage hills effectively? Were you able to finish strong?
- Nutrition/Hydration: Did your plan work? Did you experience any GI issues? Did you drink enough? Were your electrolyte levels right? What foods/products worked well or didn’t?
- Gear: Did your shoes perform well? Was your vest comfortable? Did your clothing choices work for the conditions? Did you use everything you carried? Was there anything you wished you had?
- Mental Game: How did you handle the low points? What coping strategies worked?
- Training: Looking back at your 50k training plan, what aspects felt strong? Were there areas you felt underprepared (e.g., hills, technical trails)?
Learning from both successes and mistakes is key to improving for future races.
Adapting Your 50k Training Plan for Specific Courses
Not all 50k races are created equal. As you consider future events, think about tailoring your training:
- Technical Trails: If your next race involves lots of rocks, roots, and tricky footing, incorporate more runs on similar terrain. Focus on agility, footwork, and potentially specific strength exercises for ankle stability.
- Significant Elevation Gain/Loss: If the course profile is hilly, make hill training (repeats, hilly routes, strength work like step-ups and lunges) a major focus of your 50k training plan. Practice downhill running technique to handle the eccentric load efficiently and minimize muscle damage.
- Runnable/Flat Courses: While seemingly easier, flat courses require relentless forward motion. Your training might include more tempo runs or steady-state efforts to build the ability to sustain a consistent pace for a long time.
Training in Different Environments
- Heat Training: If racing in hot conditions, gradual heat acclimatization during training is crucial. Practice hydrating effectively, managing electrolytes (especially sodium), and adjusting your pace expectations. Choose gear wisely for heat management.
- Cold Weather Training: Layering becomes even more critical. Practice managing your layers to avoid overheating and sweating excessively, which can lead to getting dangerously chilled. Protect extremities (hands, feet, head) and be prepared for icy or snowy conditions if applicable.
Advanced Training Techniques (Brief Overview)
Once you have a solid base and experience from your first 50k, you might consider incorporating more advanced techniques into future 50k training plans, potentially with the guidance of a coach:
- More Specific Intensity: Strategically adding more VO2 max intervals or longer threshold workouts to improve efficiency and speed.
- Advanced Long Run Strategies: Incorporating elements like fast finishes (running the last part of your long run at a faster pace) or depletion runs (practicing running on lower fuel stores, done cautiously and infrequently) to simulate race conditions more closely.
- Using Data: Employing heart rate monitors or running power meters to guide training intensity more precisely.
The Power of Community and Coaching
- Running Groups: Training with others can provide motivation, accountability, shared knowledge, and camaraderie. Find a local trail running group or connect with runners online.
- Coaching: Working with an experienced ultrarunning coach can provide personalized training plans, expert guidance, objective feedback, and help you navigate the complexities of training and racing, potentially accelerating your progress and reducing injury risk.
What’s Next? Considering Longer Distances?
Your successful 50k might ignite a passion for pushing further. Many runners use the 50k as a stepping stone towards longer ultras like 50 miles, 100k, or even 100 miles. While the core principles remain similar, training for these longer distances requires significantly higher volume, more emphasis on back-to-back long runs, meticulous attention to nutrition and gear, enhanced mental resilience, and even greater respect for recovery. Approach these longer distances with careful planning and gradual progression.

Your 50k Journey: Embrace the Challenge, Celebrate the Finish
Embarking on a 50k training plan is a major undertaking, demanding dedication, discipline, and resilience. From the initial assessment and building weekly mileage, to incorporating strength work, mastering nutrition and hydration, selecting the right gear, executing the taper, and finally navigating race day – it’s a comprehensive journey.
Remember the key takeaways: the foundation of a well-structured 50k training plan, the importance of consistency over weeks and months, the crucial roles of targeted strength training and smart cross-training, the non-negotiable practice of race day nutrition and hydration, the necessity of appropriate gear and understanding mandatory requirements, the art of the taper, the power of mental fortitude, and the critical need for post-race recovery.
Completing a 50k ultramarathon is a testament to your hard work and determination. It pushes you beyond perceived limits and teaches you invaluable lessons about yourself. Whether it was your first or one of many, be incredibly proud of what you accomplished.
You now have the knowledge and a roadmap. Trust the process, trust your training, and most importantly, enjoy the incredible adventure that is ultrarunning. Embrace the challenge, learn from every step, and celebrate every finish line.
Now, go ahead – share this guide with fellow aspiring ultrarunners! What are your 50k goals? Start planning your own incredible 50k training plan journey today!
Thank You and Further Resources
Thank you for reading our comprehensive guide to creating and executing your 50k training plan! We hope this resource provides valuable insights and practical steps to help you confidently tackle your first (or next) ultramarathon.
The information presented here is compiled and synthesized from the collective knowledge and experience of numerous ultrarunning coaches, experienced athletes, and reputable running resources. While we haven’t cited specific sources for each point throughout the text to maintain readability, the principles discussed are grounded in established best practices within the ultrarunning community.
If you’re looking for specific training plans or further in-depth information, here are a few excellent resources to explore:
- Hal Higdon’s Ultramarathon 50K Training Programs: A well-respected source offering structured training plans.
- Marathon Handbook 50K Training Plans: Provides free, downloadable plans for various levels (mentioned in our sources).
- iRunFar: A leading resource for trail running and ultrarunning news, gear reviews, and race coverage.
We wish you the very best on your 50k journey. Happy trails!

About the Author
Lost Pace is an ultramarathon runner, shoe-tester and the founder of umit.net. Based year-round in Türkiye’s rugged Kaçkar Mountains, he has logged 10,000 + km of technical trail running and completed multiple 50 K–100 K ultras.
Blending mountain grit with data, Lost analyses power (CP 300 W), HRV and nutrition to craft evidence-backed training plans. He has co-written 260 + long-form guides on footwear science, recovery and endurance nutrition, and is a regular beta-tester of AI-driven coaching tools.
When he isn’t chasing PRs or testing midsoles, you’ll find him sharing peer-reviewed research in plain English to help runners train smarter, stay healthier and finish stronger.
Ultrarunner · Data geek · Vegan athlete