Stryd Critical Power Explained for Ultra Runners (2025 Guide) Curious how the best ultrarunners are pacing 100Ks and 100 milers with science? Welcome to the world of Stryd critical power—the running power metric that’s changing ultra training. This guide explains Stryd’s critical power for ultramarathon, covers Stryd power zones, setup for trails, and why “watts” … Read more
AI Coach for Ultramarathon: Are They Worth It? Welcome to the future of ultramarathon training! If you’ve ever wondered whether a virtual coach powered by artificial intelligence could help you conquer a 100K or 100-miler, you’re not alone. More runners than ever are turning to AI coach ultramarathon apps, hoping for smarter plans, instant feedback, … Read more
AI Coaching & Wearable Tech in Ultramarathon Training (2025 Guide) 🏃♂️ Lost Pace here! If you’ve ever run a 100-miler and wondered if your watch would die before your legs, welcome—you’re in the right place. Let’s face it: Ultramarathon training is no longer just about running until you’re tired and hoping for the best. These … Read more
Introduction As ultramarathon distances continue to challenge the boundaries of human endurance, the role of artificial intelligence (AI) and wearable technology in ultrarunning has never been more pivotal. From customized training plans to real-time analytics and biofeedback, the period from 2025 to 2030 promises significant advancements that will shape how athletes train, race, and recover. … Read more
How to Load Your Runna Plan to a Polar Watch: Step-by-Step Guide (2025) Runna + Polar Integration Bring your custom AI training to your Polar watch—no manual entry required. Love Runna’s adaptive AI training plans but want to execute them on your Polar watch? With a few quick steps, you can export your Runna workouts … Read more
How to Activate AI Race Plans in Garmin Connect: Step-by-Step Guide (2025) Smart Training Tech Unlock Garmin’s AI-powered race plans and train smarter for your next big event. Garmin Connect now offers AI-generated, adaptive race plans tailored to your fitness, schedule, and goals. Whether prepping for a 5K or an ultramarathon, activating these plans on … Read more
Fatigue Prediction with Machine Learning: HRV & Sleep Data Models Explained 2025 Science & Practice How AI and HRV/sleep data now drive smarter recovery for runners Fatigue can make or break your running journey—causing injury, burnout, or breakthrough. In 2025, machine learning (ML) and artificial intelligence (AI) have revolutionized how runners, coaches, and apps predict … Read more
AI-Assisted Endurance Training: What 2023–2025 Research Shows (Science Review) Latest Science Does AI really boost endurance? Here’s what new research says. Every new training tool claims to be “AI-powered”—but what does real science say? As marathoners, ultrarunners, and everyday athletes rely more on apps and wearables, research from 2023 to 2025 offers the first real … Read more
AI Coach vs Human: How to Build the Best Hybrid Model for Runners & Ultrarunners 2025 Playbook Why the best results come from mixing technology and human wisdom Should you trust an AI running coach, stick with a real person, or get the best of both worlds? In 2025, more and more runners—from 5K beginners … Read more
AI Critical Power Calculation for Runners: Stryd, Apps & The Future of CP Modeling 2025 Deep Dive How AI and Stryd are changing Critical Power for marathon & ultra runners Critical Power (CP) has become the “north star” metric for serious runners—shaping training intensity, pacing, and even recovery. With the rise of Stryd and next-generation … Read more