Sunday, September 4, 2022

This beautiful loop course follows along the lower and mid mountain elevation single-track trails on Big Sky Mountain Resort. Runners will enjoy views of the dramatic alpine terrain of Lone Peak above while cruising through subalpine white bark pine forests.

OnX Backcountry 11K Map

Aid Stations (We are a cupless event)

There is one aid station located along the 11K course near 4.7 miles into the race. It will be supplied with water, Skratch Labs electrolyte drink, first aid, and energetic volunteers.


By the Numbers

  • Distance:  A short 11K (6.4 Miles)
  • Aid Station: 4.7 Miles
  • Elevation Gain: 1600 ft / 487 meters
  • Elevation Loss: 1600 ft / 487 meters
  • 80% Single Track
  • 20% Dirt Road

The Rut would not be possible without the support of our sponsors.


Become a partner of the Rut Mountain Runs »



To limit congestion at the start line, we will have three waves of 5-minute rolling start windows for our 11K this year. (A rolling start means that you can begin anytime within the 5-minute window of each wave.)
We did not offer wave options when you registered for the Rut, therefore, you must self-select and join the appropriate wave on race day.
If you hope to be in the first third of finishers, please join Wave 1, in the second third of finishers, Wave 2, and the last third, Wave 3. Self-selecting appropriately reduces unnecessary passing on the trail.
Lastly, overall awards and prize money will be based on the time from when the gun goes off with the first wave. Age group awards will be based on chip timing.

Course Markings

This is not an orienteering race. The race organizers will do everything they can to have the course marked well for race participants the day of the event. Off-trail sections of the course will be marked in a way that race participants should be able to see from each course marking to the next to help guide them along the course. The Rut 11K will be marked with RED tape and pin flags with a black Rut Logo on them.


Please be prepared for any type of weather. Though weather in Big Sky is relatively mild and stable in mid-September historically we are still in the mountains and conditions can quickly change. This is a challenging run on challenging terrain and the race organizers reserve the right to stop the race at any time should they deem the course unsafe due to weather.

11K Fine Print

  • Pacers and dogs: Not allowed.
  • Trekking poles: Allowed
  • Headphones: highly discouraged due to areas with rockfall hazards and potential wildlife hazards along the trail.
  • Crewing: Not allowed
  • Speakers: Out of respect of others, please do not use speakers for music that other people can hear. Not everyone loves your music.
  • Course Changes: Due to the mountainous and technical nature of this course, race organizers may choose to make course changes on race day due to severe weather with the race participants safety in mind.


Rut Registration Policy

  • There will be no deferrals, credits, transfers, or waitlists for any Rut race.
  • Rut Runners who must drop out due to unforeseen circumstances may do so by May 15th and will receive a 50% refund.
  • Rut Runners may also move down in distance. This must be done no later than August 1st.
  • The 50K can move to the 28K or 11K, but not the VK.  The 28K can move to the 11K, but not the VK.  The VK can move to the 11K. A transfer in distance will be charged a $5 processing fee.
  • Questions? Check out our Rut Registration FAQ's page.