Circle Endurance Event 24 Hour

Ringgold, United States • 21 Nov 2026

Circle Endurance Event 3, 6, 12, 24 Hour

The Circle Endurance Event is a multi-hour track running competition held at Ringgold High School in Ringgold, Georgia. The event is USATF sanctioned and offers the following time-based races:

  • 3 Hour
  • 6 Hour
  • 12 Hour
  • 24 Hour

Competitors circle the track repeatedly and final results are determined by the total number of laps completed within each race time limit. Each completed lap is credited as 0.25 miles; participants should expect their watch to show a higher mileage than the official track mileage. The event operates as a cup-free race, so runners must bring their own hydration systems. Volunteers provide an aid station with drinks and snacks, but runners are responsible for their own food and hydration. Littering on the course can result in disqualification.

Crew support is permitted every lap from a designated infield area near the start line. Pacers are allowed only if they are registered participants. Courtesy rules require single file running in inside lanes to allow safe passing. Small personal pit areas and small tents are allowed on the turf but no tent stakes; tents must be weighed down. A designated area exists for small RVs and car camping near the stadium.

Prizes include top three male and female finishers in each distance plus masters and grandmasters awards. Special recognitions are awarded for 50K in the 6 hour, 50 miles in the 12 hour, and 100 miles in the 24 hour, with a 100 mile belt buckle noted for the 24 hour result. The event is part of the Chattanooga Ultra Championship series, which recognizes participation and cumulative mileage across three specified events. Visit the organization's website for the most recent information.

Race information

3 Hour
Circle 12
Circle 6
Circle 24
Visit the organization's website for the most recent information.
Trail runs nearby

A measured 6.65 mile loop in Chattanooga is used repeatedly for a half marathon and full marathon; proceeds support Wild Trails and the event is in its 20th consecutive year.

A timed trail event in Cleveland TN with 3, 6, 12, and 24 hour races plus a rucking division on a 4.35 mile forest loop; proceeds support local youth and community programs.

A Last Man Standing event in Chattanooga where runners repeat a 4.3-mile loop with a one hour limit per lap. After each timed cutoff the field shrinks until a single runner remains.

A low-key trail event at Lula Lake Land Trust near Chattanooga offering an easy 5K and a more technical 15K with rope sections and a descent to Lula Falls. Hikers welcome; proceeds benefit the land trust.

Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.