The Great Divide Ultra
Divide, United States • 6-7 Jun 2026
Event overview
The Great Divide Ultra is a trail running festival in Divide, Colorado on June 6-7, 2026. Distances offered include:
- 100 mile
- 100k
- 50k
- 25k
The event takes place in Mueller State Park and includes a night run called the Dark Divide Night Run. Registration closes June 3. The event is described as an early season, looped trail race on rolling meadows with views of Pikes Peak granite.
Course and logistics
All courses use smooth single- and double-track trails. The 100 mile course is composed of six 14.8 mile loops and one 10.5 mile loop. Elevation range for the courses is about 9,189 ft to 9,743 ft. Reported elevation gain values: 100 mile ~16,071 ft, 100k ~8,500 ft, 50k ~4,200 ft, 25k ~2,100 ft. The 100 mile has a 36 hour cutoff.
Aid stations are spaced about 4.3 to 6.1 miles apart, are crew accessible, and allow drop bags. Typical supplies listed include Tailwind, Muir Energy gels, snacks, fruit, and soda; two aid stations will offer hot food options. Crew access is available at the Livery (start/finish) and Hart-Lee Homestead. Pacing is allowed for the 100 mile and 100k, with 100 mile pacers permitted from mile 44.4. Parking for some distances is at John Wesley Ranch, about 2.2 miles from the start, with shuttles provided. Mueller State Park offers campsites by reservation. Weather can be varied; participants are advised to prepare for cool overnight temperatures and possible rain or snow. Visit the organization's website for the most recent information.