CMRA Frozen Platte 8K
Platte River Bar & Grill 5995 S Santa Fe Dr, Littleton, CO, United StatesThe course will go north from there on the S. Platte trail, across the suspension bridge at the Big Dry Creek Trail, back south on the west side of the […]
Resolve to Run 5K and Ultra
UNC - Unversity Center 2101 10th Ave, Greeley, CO, United StatesLooking for an epic way to kick off the year? Join a single 5K race or see how many 5K loops you can complete in the 12-hour challenge! There will […]
Arches Ultra
Gemini Bridges Trailhead at Gemini Bridges, Moab, UT, United StatesArches 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 […]
Big Brrrrito! 5 Mile
Chatfield State Park 11500 N Roxborough Park Road, Littleton, CO, United StatesWe host one race per month from November to March. All races are at Chatfield State Park and start at 9:00 am on Saturday mornings. Check-in starts at 8:15 am.
Rio Frio 5K
Cole Park 300 Hunt Ave, Alamosa, CO, United StatesThe 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.
Polar Bear 5K
Horsetooth Reservoir 4200 W County Road 38 E, Fort Collins, CO, United StatesEnjoy 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 […]
Canceled Arctic Prairie Dog Half Marathon
Coal Creek Golf Course 585 Dillion Rd, Louisville, CO, United StatesThe Arctic Prairie Dog race is the perfect motivation to get your New Year's goals calendar off and running (pun intended!). Check a half marathon, 10k or a 5k off […]
Polar Bear 5K
Washington Park - Denver 701 S Franklin St, Denver, CO, United StatesYou run faster when it's cold, right? All the "cool" runners are doing it, so come run for the chill of it! RACE HIGHLIGHTS: 
Participants receive some great eco-friendly official […]
Yeti Chase
Bear Creek Lake Park 15600 W Morrison Rd, Lakewood, CO, United StatesThis race is conveniently located on the scenic west side of metro Denver. Bear Creek Lake Park is known for it’s diverse bird and waterfowl population as well as stunning […]
Sourdough Snowshoe Race
South Sourdough Trailhead 115 Co Rd 116, Nederland, CO, United StatesThe 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 […]
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