Crested Butte Ultra

Crested Butte Ultra (September 26, 2026)

The Crested Butte Ultra takes place in Crested Butte, CO. The event offers the following distances:

• 50 Mile
• 55K
• 35K

Packet pickup is held on race day at Crested Butte Community School, 818 Red Lady Avenue. The finish line is at the same location as the start. Entries are non-transferable and a photo ID is required to receive a race packet. Runners must attach their timing chip to their shoe to receive an official time.

Course and logistics

Courses traverse trails in the Gunnison National Forest and pass through mountain meadows and ridges. Lower elevations feature wildflowers and fall foliage. The event is authorized under a special use permit with the Grand Mesa, Uncompahgre, and Gunnison National Forests.

Elevation details by distance:

• 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.

Aid stations operate cupless. Water dispensers are located at the start/finish and at every aid station; runners should bring a reusable cup, bottle, or bladder. All finishers receive a custom race shirt, a custom BOCO hat, and a finisher's buckle. Results are posted on Ultrasignup. Visit the organization's website for the most recent information.