Big's Backyard Ultra

bigsbackyardultra.com

Official site for the Big's Backyard Ultra, the original last-person-standing ultramarathon race.

why we picked it

The site provides race rules, results, history, and registration details for the Big's Backyard Ultra. The format is inherently unusual: runners complete a 4.1667-mile loop every hour until only one remains. It appeals to endurance sports enthusiasts and those curious about unconventional competitions.

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language: EN
here since: July 2026