Colorado 24 Hour Run

OCT-NOV
31-1
2026
Runners tackle a scenic, flat one-mile dirt loop for 6, 12, or 24 hours in Fort Collins. The event includes individual and team relay formats with full support, including a hot food aid station. It's a certified, timed challenge set on the grounds of the Colorado Youth Outdoors campus.
31-1 Oct-Nov 2026
6 Hour 6 Hour Relay 12 Hour Relay 12 Hour 24 Hour Relay

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Course and Format

The Colorado 24 Hour Run takes place on a flat, scenic one-mile dirt road loop on the Colorado Youth Outdoors – Swift Ponds Campus near Fort Collins. The course is USATF certified and sanctioned. The event features individual and team relay races with set durations: 6-Hour, 12-Hour, and 24-Hour. Runners change direction on the loop every six hours. The registration cap is 300 participants.

Aid and Facilities

A full-service, hot-food aid station is available at the start/finish area every lap. The station offers a wide variety of food and drinks, including vegetarian, vegan, and gluten-free options. Portable toilets are located at the start/finish and at the loop's midpoint, with modern restrooms available in the on-campus lodge, Richardson Hall. The heated lodge is open for runners and crews seeking respite. Participants can set up personal aid stations in a designated area near the start/finish.

Location and Schedule

The event is held at 4927 E. County Road 36 in Fort Collins. Packet pickup is on-site. The campus opens to runners at 6:30 AM on the first day, with a pre-race briefing at 7:55 AM. All races begin with a mass start at 8:00 AM. The 6-hour race finishes at 2:00 PM, the 12-hour at 8:00 PM, and the 24-hour course closes at 8:00 AM the following morning, with awards following shortly after. Visit the organization's website for the most recent information.

24 hr
24 Hour Relay
24 hr
24 Hour
12 hr
12 Hour Relay
12 hr
12 Hour
6 hr
6 Hour
6 hr
6 Hour Relay