The Rut / organiser
The Rut Mountain Runs
Big Sky, Montana, United States
10–12 Sep 2027
Provisional
Not open
A high-altitude skyrunning festival in Big Sky, Montana, centred on a 50K, a 28K and a vertical kilometre beneath Lone Peak (11,166 ft).
Train for this raceAbout
The Rut is a three-day mountain running festival at Big Sky Resort, Montana. The 50K and 28K climb through Lone Peak country on steep, rocky terrain, and the vertical kilometre is among the best known in North America.
It is a major US skyrunning event with a strong elite field.
Distances
| Name | Distance | Gain | Loss | Vert / km | Min altitude | Max altitude | Start | Start location | Finish | Course | Cutoff | Terrain | Technicality | Aid stations | Badges | Entry fee |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rut 50K | 50 km | 3,100 m | — | 62.0 m/km | — | — | 11 Sep 2027 06:00 America/Denver | Big Sky, Montana | Big Sky, Montana | Loop | — | Mountain | — | — | — | — |
| Rut 28K | 28 km | 1,800 m | — | 64.3 m/km | — | — | 11 Sep 2027 07:30 America/Denver | Big Sky, Montana | Big Sky, Montana | Loop | — | Mountain | — | — | — | — |
Rut 50K terrain notes
Steep rocky ridgeline running around Lone Peak with scree and scrambling.
Rut 28K terrain notes
Shorter mountain loop on the Lone Peak slopes.
Registration
- Status
- Not open
Links
Notes
Mid-September race weekend.