The Rut Mountain Runs

The Rut Mountain Runs

The Rut Mountain Runs is a three-day mountain running event held September 11-13, 2026 at Big Sky Resort in Big Sky, Montana. The event presents a range of trail distances and a vertical kilometer across multiple days.

The Trifecta, 50K, 28K, and Lone Peak Vertical Kilometer are open to ages 16 and older. The Kids 1K Runt Run is offered at no cost; registration for the kids race ends September 12, 2026 at 4:50 PM MDT. Registration for the overall event opens on January 6 at 8 AM Mountain Time.

Distances and event types include:

• Trifecta (50K, 28K, VK)
• 50K
• 28K
• 21K
• Lone Peak Vertical Kilometer
• 11K
• Kids 1K Runt Run

The event takes place at Big Sky Resort and runs across three days. Information in this description is limited to event format, dates, location, registration timing, age eligibility for specific events, and the listed race distances. Visit the organization's website for the most recent information.