The Great Divide Ultra
Divide, United States • 6-7 Jun 2026
The Great Divide Ultra : June 6-7, 2026, Divide, CO
The Great Divide Ultra is a weekend trail running festival held in Mueller State Park near Divide, Colorado. Distances offered include:
- 100 mile
- 100k
- 50k
- 25k
- Dark Divide Night Run (night event for 25k and 50k)
The event takes place on looped single- and double-track trails through spring-fed meadows and Pikes Peak granite outcrops. The 100 mile course consists of six 14.8 mile loops and one 10.5 mile loop. The terrain is described as smooth and non-technical.
Course details, support and logistics
Elevation on the courses ranges between 9,189 ft and 9,743 ft. Aid stations are spaced about 4.3 to 6.1 miles apart, are crew accessible, allow drop bags, and will offer Tailwind, Muir Energy gels, snacks, fruit and soda; some aid stations will provide hot food. The 100 mile race has a 36 hour cutoff. The 100k, 50k and 25k courses have listed elevation gains (for example 100K about 8,500 ft, 50k about 4,200 ft, 25k about 2,100 ft).
Parking for the 100 mile, 100k and night run is at the Livery/Equestrian area. Other racers will park at John Wesley Ranch and be shuttled to the start; the ranch is about 2.2 miles from the start/finish. Crew access is allowed at the Livery and Hart-Lee Homestead aid stations. Pacing is permitted for the 100 mile and 100k under the event rules. Packet pickup is held before the race weekend. Registration closes June 3rd. Visit the organization's website for the most recent information.