The Circle Endurance Event is a track race at Ringgold High School in Ringgold, GA, brought to you by the Chattanooga Track Club, creators of the renowned Mad Backyard Ultra and the Locomotion Endurance Event.
The event challenges runners to circle the track continuously and cover as much ground as possible within the chosen time limit.
The Circle Endurance Event is now officially a USATF-sanctioned event.
Runners are responsible for their food and water. Volunteers will provide an aid station with drinks and snacks, but it is the responsibility of the runner to make sure they have enough food and hydration to sustain them throughout the event.
This is a cup-free event and participants will need to bring their hydration systems.
Small RVs/Car Camping: A designated section is available for those with Small RVs or who are car camping, allowing them to park near the stadium at Ringgold High School.
Top 3 Male / Female in each distance, along with Top Male / Female Masters, Top Male / Female Grandmasters.
Special Awards for the following Participants:
Chattanooga Ultra Championship Awards (Mad, Locomotion, Circle Endurance):
The Chattanooga Ultra Championship consists of the MAD Backyard Ultra (January 2026), Locomotion (April 2026), and Circle Endurance Event (November 2026). To be eligible for the Chattanooga Ultra Championship, participants must compete in all three races, with awards for general participation, completing at least 50K in each race, and for the top three male, female, and masters runners accumulating the most mileage across all events.
All times are Eastern.
To ensure participant safety and follow youth distance recommendations set forth by the Road Runners Club of America (RRCA) and USA Track & Field (USATF), the following age parameters apply to our event options:
Runners may have crew support every lap. The crew must stay in the designated area in the infield of the track near the start line. Pacers will not be allowed unless they are registered participants.
The race is run on a track. Runners circle the track continuously, and final results are based on the number of total laps completed by the time limit. Each lap counts as .25 miles.
Ringgold is a city in northwest Georgia and the county seat of Catoosa County, and it is part of the Chattanooga metropolitan area. Summers here are hot and humid, so spring and autumn offer the most comfortable conditions for racing.
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