Sep 03, 2022 at 7:00 AM

The Rut

Big Sky MT,


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Entry Fee $35
(Lowest or Early Registration)

Entry Fee 2 $110
(Highest or Late Registration)

Prize Money: yes


  • 50K
  • 11K
  • 28K

Type: Mountain

Participant Limit: 750

Starting Elevation: 7500

High Point: 11200

Percent of the course on un-paved trails: 100%

First Year of the Event: 2013


28K is on Saturday
50K and 11K is on Sunday

The Rut 50K is an extremely challenging mountain run held on Big Sky Resort property. Race participants will find themselves covering ALL types of terrain including jeep roads, forested single track trails, alpine ridge lines and even to the iconic summit of Lone Peak!

There are sections of this course, including the ascent and traverse of Headwaters ridge, as well as the ascent and descent of Lone Peak, which are EXTREMELY STEEP & TECHNICAL with sections of exposure and potential rockfall hazard. We will have safety personnel along these sections keeping an eye out for runners and assessing any objective hazards, but the responsibility falls on the race participant to be aware of your surroundings and other runners. This is a true mountain course so please treat it with the respect it deserves! We strongly encourage you to become familiar with the course terrain before registering for this event.

The Rut 50K by the Numbers:
Distance: 31 Miles / 50K
Elevation Gain: 10,500 ft / 3,200 Meters
Elevation Loss: 10,500 ft / 3,200 Meters
60% Single Track
25% Dirt Road
15% Off Trail

The Rut is committed to clean sport and does not condone the use of performance enhancing drugs or banned substances at any level of competition. The Rut believes all athletes competing in any of The Rut events and sport in general should educate themselves on the anti-doping rules and banned substances established by the World Anti-Doping Agency (WADA) and on other anti-doping rules and policies. READ MORE.



Past Event Dates

Held on Sep 03, 2022

Held on Sep 04, 2021

Held on Sep 05, 2020

Held on Aug 31, 2019

Held on Sep 02, 2018

Held on Sep 03, 2017

Held on Sep 03, 2016

Held on Sep 06, 2015

Held on Sep 13, 2014

Held on Sep 14, 2013