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Big Dog's Backyard Ultra

Bell Buckle, United States • 18 Oct 2025

Big Dog's Backyard Ultra is an elite ultrarunning event held annually near Bell Buckle, Tennessee, on the Big Trail. Scheduled for the third Saturday in October, it serves as the Individual World Backyard Ultra Championships, attracting top backyard ultra athletes worldwide. Participants qualify by winning their national championships or ranking highly in at-large performances over the previous two years. The race features a unique format where runners complete repeated loops until only one remains, testing endurance and strategy. The event fosters a competitive yet community-driven atmosphere, with qualification ongoing through mid-August, ensuring a field of highly accomplished ultrarunners. Visit the organization's website for the most recent information.

United States Tennessee Bell Buckle

Race information

Registration Facebook
100 hr
Backyard Ultra Format (timed Event)
Visit the organization's website for the most recent information.
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