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Why the World’s Biggest Trail Race Happened in France
22 August 2026

Why the World’s Biggest Trail Race Happened in France

Borderlands Trail and Ultra Running

About

UTMB is the biggest trail race in the world, but why did it happen in France? The easy answer is Mont Blanc. The better answer has more to do with culture, timing, and the kind of endurance tradition that was already there long before UTMB existed.

Josh talks with Doug Mayer, founder of Run the Alps and author of The Race That Changed Running, about the deeper conditions that made UTMB possible, from old mountain races and ski mountaineering to the Pellettis’ execution and the way places like Vallorcine turned the race into something people gather around, not just run.

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Resources / Links
    Run the AlpsSalt Lake Foothills Trail Races Josh Rosenthal on IGBorderlands.ccSubwhatever

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Presented by Kiprun.

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