The Rut 50K
The Rut 50K climbs technical mountain terrain around Big Sky and Lone Peak, combining exposed scrambling, steep grades and a capped field each September.
Quick facts
- Technical 50-kilometre mountain course
- Lone Peak exposure and scrambling
- The 50K sells out
- Summit conditions can be far colder than the resort base
About the Rut 50K
The 50K is a separately entered and timed mountain race within The Rut weekend. Its Lone Peak exposure, technical terrain and Sunday start provide a clear distance identity.
Course
The course climbs from Big Sky Resort toward Lone Peak on steep and technical trail. Exposed ridges, loose rock and demanding descents make mountain skill as important as fitness.
Race-day weather
Mid-September at high elevation can bring sun, wind, rain, hail or snow in one day. Conditions on Lone Peak may be far colder than at the resort base.
Past Rut 50K dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Sunday, September 13, 2026 | Results available | Open results |
The Rut 50K FAQ
When is The Rut 50K?
We're waiting for the finalized date for the 2027 Rut 50K. The most recent running was on Sunday, September 13, 2026.
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