Big Dog's Backyard Ultra
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Big Dog’s Backyard Ultra Individual World Championships
Big Dog’s Backyard Ultra Individual World Championships is an individual backyard ultra event held at the Big Farm in Short Creek near Bell Buckle, Tennessee, United States. The field is limited to 75 runners and is composed of national champions from the 2024 Team Championships and top athletes from the worldwide At Large List.
The event follows the Backyard Ultra format: competitors must complete a loop of 6,706 m (4.167 miles) within each hour. Laps repeat in hourly cycles and continue until a single runner completes the final lap; the event does not use a traditional fixed-distance finish.
The course alternates surfaces between day and night: the day loop is on single-track trail, and the night loop uses soft-base asphalt. Climb per loop is listed as 475 ft for the day loop and 100 ft for the night loop.
A recorded best performance for the event is 108 yards, equivalent to 450 miles, registered in 2023. The race is presented as the individual world championship for the Backyard Ultra discipline and takes place in Bell Buckle, Tennessee. Visit the organization's website for the most recent information.
