Circle Endurance Event 3, 6, 12, 24 Hour 2026

The Circle Endurance Event is a timed ultra race held at Ringgold High School in Ringgold, Georgia. It offers 3-hour, 6-hour, 12-hour, and 24-hour race options, all commencing at 8:00 AM Eastern Time. Rather than aiming for a set distance, participants aim to complete as many miles as possible within their chosen time limit. The longest race extends over a full day on the track. The race format is straightforward: run laps, rest as needed, manage nutrition and pacing, and then resume running. This event is organized by the directors of Mad Backyard Ultra and Locomotion Endurance Event, and it is included in the Chattanooga Ultra Championship alongside those races. To qualify for the championship, runners must participate in all three events. Awards are presented for participation, achieving at least 50K in each race, and for the highest total mileage across the male, female, and masters categories.