Event details subject to change. Please confirm all information via event website.
Endure Trail Runs
Mueller State Park 21045 State Highway 67, Divide, CO, United StatesThe Endure 12-Hour is a one-of-a-kind challenging 12-Hour timed event, designed by YOU… and tiny colorful balls. Each runner will pull colored balls from a bucket, which determines the loop they’ll next run. This continues for up to 12-hours in time, and the runner’s result is the number of miles they ran within the allotted time. […]
Memorial Day Run and March
America the Beautiful Park Cimino Dr, Colorado Springs, CO, United StatesSpecial Forces Foundation is proud to announce the Annual Memorial Day Run & March. Be a part of the LARGEST food donation event in Colorado! The Memorial Day Run & March invites civilians, Veterans, and uniformed Military to challenge themselves in friendly competition while helping feed homeless Veterans. We have three category events to choose from […]
Vallecito Lake Heavy Half
Vallecito Lake 17454 Co Rd 501, Bayfield, CO, United StatesThe Vallecito Lake Heavy Half Marathon is a beautiful and scenic course around Vallecito Lake. Nestled in the heart of the San Juan Mountains in Colorado, our race course takes runners completely around the picturesque Vallecito Reservoir with a special section that runs right across Vallecito Dam. If you ever wanted to run all the […]
Spirit Challenge
Steamboat Springs Middle School 5100 Amethyst Drive, Steamboat Springs, CO, United StatesThe Spirit Challenge Run for Autism offers three different distances, a 10k, 5k and Kid’s Fun Run. All races are on paved roads, except for the 5k which has a short section on trail. The Kid’s Fun Run is an 800m run consisting of 2 laps around the Steamboat Springs Middle School track. The Spirit […]
Colfax 5K
City Park - Denver 1700 N York St, Denver, CO, United StatesCome join over 21,000 runners from all over the world in the Mile High City! 2 Days, 8 Races means a distance for everyone! 26.2 Marathon through the stadium, fire station, downtown, Sloan’s Lake, Colfax Ave, 7 miles of water 13.1 Half Marathon through Denver Zoo, Denver Fire Station, downtown, Colorado Firefighter Calendar on course Urban 10 […]
Colfax Marathon
City Park - Denver 1700 N York St, Denver, CO, United StatesCome join over 21,000 runners from all over the world in the Mile High City! 2 Days, 8 Races means a distance for everyone! 26.2 Marathon through the stadium, fire station, downtown, Sloan’s Lake, Colfax Ave, 7 miles of water 13.1 Half Marathon through Denver Zoo, Denver Fire Station, downtown, Colorado Firefighter Calendar on course Urban 10 […]
Wild Horse Half Marathon
High Lonesome Ranch 275 CR 222, De Beque, CO, United StatesSet against the breathtaking backdrop of the luxurious High Lonesome Ranch, this isn’t just a race—it’s a full weekend of adventure and celebration! Runners will enjoy a country cookout, campfires, live local music, and camping accommodations. It’s the perfect blend of rugged terrain and western hospitality, complete with a lively hoedown to round out the weekend. […]
Dash and Dine 5K #4
Boulder Reservoir 5565 N 51st St, Boulder, CO, United StatesThe Dash & Dine 5k run, Boulder’s favorite spring tune-up run series is back for 4 races in May at the beautiful Boulder Reservoir in Boulder, CO.
Samson’s Revenge Trail Race
YMCA of the Rockies - Estes Park 2515 Tunnel Rd., Estes Park, CO, United StatesSamson was the celebrity elk of the Rockies until he was illegally poached in 1995 on YMCA grounds. Our race runs on Samson's home turf, The YMCA of the Rockies, which his descendants still call home. The course is fast single track with a big King of the Mountain challenge slapped in the middle. This […]
Narrow Gauge 10 Mile
Fort Lewis College 1000 Rim Dr, Durango, CO, United StatesSince 1978 the Narrow Gauge 10 Mile Run has been one of Durango’s oldest Memorial Day traditions. The 10-mile course showcases the Fort Lewis College rim, the Animas River Trail and great views of Durango! This is the longest continuously run road race in Colorado. In 2021, even with COVID, we had a temporary race […]
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