Crested Butte Ultra

Crested Butte, United States • 26 Sep 2026

Event details

Crested Butte Ultra takes place in Crested Butte, Colorado on September 26, 2026. The event offers three distances:

  • 50 Mile
  • 55K
  • 35K

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). The event is authorized under a special use permit with the Grand Mesa, Uncompahgre, and Gunnison National Forests. Registration for the event opens November 1, 2025.

Course and support

Course data by distance:

  • 50 Mile - lowest point 8,822 ft, highest point 11,291 ft, elevation gain 8,301 ft, elevation loss 8,301 ft.
  • 55K - lowest point 8,822 ft, highest point 11,290 ft, elevation gain 4,567 ft, elevation loss 4,567 ft.
  • 35K - lowest point 8,822 ft, highest point 9,988 ft, elevation gain 2,280 ft, elevation loss 2,280 ft.

The event operates cupless aid stations; runners must provide a reusable cup or container. Water dispensers are available at the start/finish and at each aid station. Race day packet pickup is at Crested Butte Community School; runners must present photo ID to receive a packet. Entries are non-transferable and bibs may not be picked up for another person. All finishers receive a race shirt, a BOCO hat, and a finisher's buckle. Official results are posted on UltraSignup; race photos are provided by Redgoat Photography. Visit the organization's website for the most recent information.

Race information

50 mi
8301 m+
50 Mile
55 km
4567 m+
55k
35 km
2280 m+
35k
Visit the organization's website for the most recent information.
Trail runs nearby

Gothic Mountain Tour is a scenic Nordic ski fundraiser in Crested Butte on Feb 15, 2026 supporting Crested Butte Nordic. Choose 23.5 miles competitive or 17.85 miles recreational and finish at the Magic Meadows Yurt.

Grin & Bear It in Crested Butte serves up high alpine singletrack with a scenic but demanding 25 km loop for runners and bikers plus a faster 15 km out and back. Expect big climbs, technical descents, limited aid and stunning mountain views..

Take on Aspen Backcountry with 50K, marathon or heavy half routes from Rio Grande Park, mostly on scenic dirt trails and high alpine terrain. After the finish enjoy the Duck Derby festival with live music, food and local vendors.

Epic point to point ultramarathon from Mt Crested Butte to Aspen across the Elk Mountains. Tackle 40 miles and over 6,000 feet of climbing on high alpine terrain while supporting Crested Butte Nordic.