Event details subject to change. Please confirm all information via event website.
Beaver Creek Uphill
Come ski, board, or run with us until the sun comes up on some of the best ski slopes in Colorado! Kicking off the Winter Races is the Beaver Creek […]
Tortoise & Hare 5K
Fossil Creek Park Lemay Avenue, Fort Collins, CO, United StatesThe Tortoise & Hare (T&H) is a low-key “handicap” series of seven races that are run monthly from October to April, typically on the first or second Sunday of the […]
Trail Apples 4 Mile
We 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.
Colorado Cold Rush 5K/10K
Baby, it's cold outside... And we're gonna take it on, because that's what living in Colorado is all about. Let's conquer the elements together at this WINTERY January 5k/10k race. […]
Polar Bear 5K
The RunDenver Series is the original running series in Colorado and has been a staple for over three decades. Produced by HAL Sports, the series promises a fun time through […]
COPS 45 Minute Race
Colorado State Patrol Track 2054 Quaker Street, Golden, CO, United StatesThe Colorado Outdoor Pace Series ("C.O.P.S.") is a unique set of races presented by Golden Mountain Runners and Golden Endurance. Race Dates January 7, 2026 - 5K January 21, 2026 […]
Chilly Willy Half Marathon
It's winter time & it's cold, but don't hibernate! Keep moving because it's a great time to go for a run whether you join us live or run virtual! We're […]
PPRR Winter Series II
Cheyenne Mountain State Park 410 JL Ranch Heights, Colorado Springs, CO, United StatesThe series consists of four progressively longer (LONG AND SHORT) races. Please note: You must choose your distance when registering. The Long Race starts at 10:00AM. Short Race starts at 10:20AM. The […]
Rio Frio 5K
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.
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 […]
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