Crested Butte Ultra
Crested Butte, United States • 26 Sep 2026
Event
Crested Butte Ultra is a trail ultramarathon held in Crested Butte, Colorado on September 26, 2026. The race is authorized under a special use permit with the Grand Mesa, Uncompahgre, and Gunnison National Forests. The start and finish are at Crested Butte Community School, 818 Red Lady Avenue, Crested Butte, CO (GPS 38°51'52.2"N 106°58'31.8"W). Registration opens November 1, 2025. All runners receive a custom race shirt, a custom BOCO hat, and a finisher's buckle. Results are posted on Ultrasignup.
Courses and logistics
Distances offered:
- 50 Mile
- 55K
- 35K
Course characteristics and elevation:
- 50 Mile: lowest 8,822 ft, highest 11,291 ft, elevation gain 8,301 ft, elevation loss 8,301 ft.
- 55K: lowest 8,822 ft, highest 11,290 ft, elevation gain 4,567 ft, elevation loss 4,567 ft.
- 35K: lowest 8,822 ft, highest 9,988 ft, elevation gain 2,280 ft, elevation loss 2,280 ft.
The routes run through the Gunnison National Forest on single-track trails, mountain meadows, and mountain ridges. Aid stations are cupless: runners must bring a reusable cup. Water dispensers are available at the start/finish line and at every aid station for filling bladders, bottles, and reusable cups. Packet pickup is at Crested Butte Community School; photo ID is required, entries are non-transferable, and bibs may not be picked up by another runner. Visit the organization's website for the most recent information.