Power of Four Ski Mountaineering Race (SkiMo)

Aspen, Colorado Aspen, CO

The Power Of Four Skimo race takes place in beautiful Aspen, Colorado, and is one of the leading ski-mountaineering races in the western hemisphere.  This event is part of The Power of Four Race Series, a unique multi-sport event series that includes mountain bike and trail run races during the summer:  Aspen Snowmass 50 MTB;…

Audi Power of Four Trail Run

Aspen, Colorado Aspen, CO

The Audi Power of Four Trail Run is a premier endurance event utilizing the challenging and unique terrain of the four peaks of The Aspen Snowmass Mountains – Aspen Mountain, Aspen Highlands, Buttermilk, and Snowmass.  Ranked by Strambecco as one of the best trail runs in the Rockies.  The Trail run, organized by the Power…


Aspen Backcountry Marathon and Heavy Half Marathon

Aspen, Colorado Aspen, CO

Aspen Parks & Recreation presents the annual Aspen Backcountry Marathon and Heavy Half Marathon. This event has two options available on race day. You can choose to run on dirt trails through the beauty of Aspen in a Full Marathon or Half Marathon. Both runs start at Rio Grande Park. The full marathon covers challenging…


Audi Snowmass 50 (formerly Power of Four MTB)

Snowmass, Colorado

The Audi Snowmass 50 replaces the event previously known as the Power of Four MTB.  The ride/race showcases the best singletrack in the Aspen/Snowmass region with a 25-mile loop ascending 5000’ feet.   Solo competitors can choose 1 or 2 laps, or you can split duties with a partner in the 50 Team event. The mountain…