The Rut Mountain Runs
Big Sky, United States • 11-13 Sep 2026
Event overview
The Rut Mountain Runs is a three-day mountain running festival in Big Sky, Montana, held September 11-13, 2026. The event takes place at Big Sky Resort and is presented by The North Face. Online registration opens January 6, 2026 at 8:00 AM Mountain Time. Multiple race options run over the weekend, including a vertical kilometer and a kids 1K. Several events are listed as open to ages 16 and older. Entry fees published for 2026 include a range from $0 for the Kids 1K to $395 for the Trifecta.
Distances
- Trifecta - 52.5 miles / 84K; 21,500 ft gain/loss
- 50K - 31 miles / 50K; 10,500 ft gain/loss
- 28K - 17.6 miles / 28K; 7,800 ft gain/loss
- 21K - 13.4 miles / 21K; 4,000 ft gain/loss
- 11K - 6.8 miles / 11K; 1,700 ft gain/loss
- Lone Peak VK - 2.85 miles / 4.6K; 3,623 ft vertical gain
- Runt Run - 0.62 miles / 1K; 80 ft gain/loss
Sponsors listed include The North Face and several regional and industry partners. Additional race information and full event details are available on the event website. Visit the organization's website for the most recent information.