Crested Butte Ultra

SEP
26
2026
Tackle high alpine single track and ridgeline trails at the Crested Butte Ultra in Colorado, with 50 mile, 55K, and 35K options for every level. Expect stunning mountain views, challenging climbs, and a finisher buckle and swag.
Sat 26 Sep 2026
50 miles 55 kilometers 35 kilometers

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Crested Butte Ultra - Event overview

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

  • 50 Mile
  • 55K
  • 35K

The start and finish are located at Crested Butte Community School, 818 Red Lady Avenue. The race is authorized under a special use permit with the Grand Mesa, Uncompahgre, and Gunnison National Forests. Results are posted on UltraSignup. Race entries are non-transferable. Packet pickup requires a photo ID and is handled on race day at the community school; runners may collect the goody bag and shirt for a registered runner who will not attend, but not another runner’s bib.

Course and race logistics

All courses traverse single-track trails, mountain meadows, and ridges and pass through portions of the Gunnison National Forest. Aid stations are cupless; participants must bring a reusable cup. Water dispensers are provided at the start/finish and at every aid station. Elevation details by course:

  • 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.

Race participants receive a custom race shirt, a BOCO hat, and a finisher’s buckle. Visit the organization's website for the most recent information.

50 mi
50 Miler
55 km
55k
35 km
35k