The Rut Mountain Runs
Big Sky, United States • 10-13 Sep 2026
The Rut Mountain Runs - Big Sky, Montana
The Rut Mountain Runs is a multi day mountain running celebration in Big Sky, Montana, scheduled for September 10-13, 2026. The program includes trail races across a wide range of distances and formats and is presented by The North Face.
Races offered include:
- Trifecta: 52.5 miles / 84K; 21,500 ft vertical gain
- 50K: 31 miles / 50K; 10,500 ft vertical gain
- 28K: 17.6 miles / 28K; 7,800 ft vertical gain
- 21K: 13.4 miles / 21K; 4,000 ft vertical gain
- 11K: 6.8 miles / 11K; 1,700 ft vertical gain
- Lone Peak VK: 2.85 miles / 4.6K; 3,623 ft vertical gain
- Runt Run: 0.62 miles / 1K; 80 ft vertical gain
The 2026 event is sold out and there will be no waitlists; the free 1K Runt Run remains open. The event program includes community nights, volunteer opportunities, race results, photography and video coverage, and published race information such as mandatory and recommended equipment and event policies.
The Rut Grants program was launched as an inaugural grant effort with an $8,000 commitment matched by a partner to create a $16,000 pool. Grant awards range from $500 to $3,500 and support trail stewardship, youth programs, storytelling, and expanded access to trail running. Visit the organization's website for the most recent information.