Mad Backyard Ultra

MAD Backyard Ultra is an endurance running event held at Camp Jordan Park in Chattanooga, Tennessee. The race features a 4.167-mile loop that participants must complete every hour, on the hour, with a strict one-hour time limit per loop. Runners continue looping until only one remains, testing both physical and mental toughness.

The course is flat, runnable, and non-technical, consisting of exterior track, gravel, and grass surfaces. Crew access is allowed at the start/finish area, but no aid is permitted on the course. Awards include a unique prize for the last runner standing, participation coins, and a belt buckle for those reaching 100 miles. Visit the organization's website for the most recent information.