Crested Butte 55 km Ultra

Race completed

55 km Distance

not publishedn/a Climbing

2.8 est Grit · Entry level

Calculated from 55 km alone — the organiser has not published an elevation profile. Read 2.8 as a floor, not a verdict.

38.8697° N, 106.9878° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~187 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2025 edition (55km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, September

Daytime high 15°C

Night low 0°C

Rainfall Mostly dry

Daylight 12 h 03 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 3268 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	55km	187	Sam Baker · 04:48:25	Ana McCabe · 05:11:16
2024	55km	124	Robbie Mason · 05:05:40	Caitlin Standifer · 05:11:59
2023	55km	119	Emilio Anaya Happel · 04:37:02	Chloe Dodge · 05:34:06
2022	55km	143	Anderson Heagy · 04:54:03	Andrea Stofko · 05:34:15
2021	55km	168	Baptiste Petitjean · 04:25:02	Anne Flower · 05:06:17
2019	55km	135	Bryan Kerl · 05:11:35	Emma Page Patterson · 05:50:20
2018	55km	93	Jeshurun Small · 04:56:07	Emma Page Patterson · 05:46:27
2017	55km	92	Toby Lefere · 05:19:15	Kelly Ahern · 06:26:09

The field grew 51% between 2024 (124) and 2025 (187). 49% of the 2025 field were women.

DUV results for the 2025 edition (55km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

The Aid Station

Course-specific beta from the community

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 55 km of trail.

Trail Running Shoes 55 km of trail — cushioning that is still there in the last quarter.
Race Nutrition 55 km of self-supported fuelling between aid stations.
Hydration Vests Flask capacity for 55 km, without the bounce.
GPS Watches Battery life first — a 55 km day outlasts most full-GPS modes.

Salomon

Sense Ride 5

RunRepeat found the Salomon Sense Ride 5 to have immaculate lockdown and a smooth and stable ride, making it confident on moderate trails and steep downhills. I…

★★★★★ 4.5

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

Tailwind