The event’s signature race is a challenging 50K Ultra that covers the four Aspen Snowmass mountains utilizing a mix of singletrack and dirt road. The event also offers a 25K race along the famed Government Trail covering Buttermilk and Snowmass mountains. As well as a 10K race that starts at Elk Camp Restaurant and traverses across Snowmass down to Fanny Hill.
Audi Power Of Four Trail Run
50K, 25K, 10K. Four mountains. One legendary day. Test your limits across all four mountains of Aspen Snowmass.
July 18th, 2026 | Race Starts: 50K - 6am, 25K - 8am, 10K - 11am
Aspen, Tiehack, & Elk Camp | Registration fee ranges from $100 - $125
Registration Opens January 1st
The Audi Power of Four Race Series is a premier endurance race series utilizing the unique and amazing terrain of all four Aspen Snowmass mountains. Each race tests the limits and skills ofelite and recreational athletes alike.
The event’s signature race is a challenging 50K Ultra that covers the four Aspen Snowmass mountains utilizing a mix of singletrack and dirt road. The 25K runs the storied Government Trail, linking Buttermilk and Snowmass. The 10K starts at Elk Camp Restaurant and traverses Snowmass down to Fanny Hill.
10K, 25K & 50K races
Runners competing in the Audi Power of Four trail race in Aspen Colorado.
Audi Power of Four Trail Run Sponsors
