Arches Ultra

Gemini Bridges Trailhead at Gemini Bridges, Moab, UT, United States

Arches Ultra travels along the border of Arches National Park, using Bar M, Klonzo, and Klondike Trail Systems.  The trails are smooth and easy at points, technical slick rock at […]

Rio Frio 5K

Cole Park 300 Hunt Ave, Alamosa, CO, United States

The Annual Rio Frio 5K on Ice is one of America’s most unique 5k races! This spectacular event is conducted entirely on the majestic frozen Rio Grande! Have you ever run on a frozen river? Come and try it out on January 29th in Alamosa.

$25
Event Series Front Range Freeze

Polar Bear 5K

Horsetooth Reservoir 4200 W County Road 38 E, Fort Collins, CO, United States

Enjoy a beautiful run around the Horsetooth Reservoir with views of the Fort Collins Foothills. After your run, show how brave you are & take the dive into the icy […]

Sourdough Snowshoe Race

South Sourdough Trailhead 115 Co Rd 116, Nederland, CO, United States

The race is intended to be a difficult and fun free of charge backcountry event; any and all plans can change due to trail conditions for the runner’s safety.  Snowshoes […]

Old Man Winter Rally 5K/10K

Bohn Park 199 2nd Ave., Lyons, CO, United States

Bundle up and get ready to run and/or ride Colorado's best mixed terrain at the Old Man Winter Rally in Lyons on February 6th. Runners can crush the 10K course of single track trails, red rock canyon and gravel paths while riders can choose a 50K or 100K of dirt, snow, climbs and thrills! With a ragin' after party with hot food and cold beer, what more could you want?

$49

Super Half Marathon

Downtown Colorado Springs 121 S Tejon St, Colorado Springs, CO, United States

The streets and trails of downtown Colorado Springs are not exactly the "Frozen Tundra of Lambeau Field" but on Super Bowl Sunday, Feb.12, 2023, more than 1,500 runners will race […]

Running Up for Air

Staunton State Park 12102 S Elk Creek Rd, Pine, CO, United States

Running Up for Air unites our community over a shared passion for running and a desire to drive real, lasting change in the fight for cleaner air. Through endurance events […]

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