100-miler comparison

Why is the Backyard Ultra Distance 4.167 Miles? Explained

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Why is the Backyard Ultra Distance 4.167 Miles? Explained

The Magic Number: Why is the Backyard Ultra Loop Exactly 4.167 Miles? Anyone new to the fascinating world of the Backyard Ultra often encounters the same initial question: why the incredibly specific loop distance? 4.167 miles (or 6.706 kilometers) seems arbitrary, almost comically precise. Unlike standard race distances (5k, 10k, marathon, 50k, 100 miles), this … Read more

Backyard Ultra Explained: Definitive Guide to Format, Rules, History & Key Terms

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Backyard Ultra Explained: Definitive Guide to Format, Rules, History & Key Terms

Welcome back to the intriguing world of the Backyard Ultra (BYU). In our main pillar post, we introduced the captivating, relentless nature of this unique “last person standing” endurance challenge. Now, we delve deeper. This article is your definitive resource for understanding the absolute fundamentals – the intricate backyard ultra format explained step-by-step, the critically … Read more