Mad Backyard Ultra
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About the race
Mad Backyard Ultra is held at Camp Jordan Park in Chattanooga, Tennessee. The race features a 4.167-mile loop run hourly, with a strict one-hour limit for each lap. Runners must start each hour in the start/finish corral; if a loop isn’t completed in time, they are out.
The event ends when only one competitor remains, with the last runner awarded the win and all others DNF. The flat, non-technical course blends track, gravel, and grass. Promoted as a grueling test of mental and physical endurance, it serves as a qualifier for The Big Dog’s Backyard Ultra.
A recent feature, the Ribbon of Resilience, visually tracks progress as runners tap out. Visit the organization's website for the most recent information.