Event details subject to change. Please confirm all information via event website.
Leadville Trail 10K
Leadville 124 E. Sixth Street, Leadville, CO, United StatesThis out-and-back course uses the first and last 3.1 miles of the LT100 Run course, featuring paved and dirt roads. Held the weekend of the historic Leadville Trail 100 MTB, […]
Summit Trail Running Series V
Carter Park 500 South High Street, Breckenridge, CO, United StatesExplore the trails of Breckenridge this summer with the 23rd annual Summit Trail Running Series with each race followed by a post-race party! The Series consists of 5 trail races […]
Eldorado Springs Run for the Cure
Eldorado Canyon State Park 294 Artesian Drive, Eldorado Springs, CO, United StatesThe Colorado Cancer Foundation returns to Eldorado Springs for its Classic 44th edition of the Eldorado Springs Run for the Cure 4 Mile on August 10th.
San Juan Softie 100
Durango Nordic Center 49786 Hwy 550 N, Durango, CO, United StatesThe softest 100 miler in the San Juans This 100 mile ultra marathon starts and finishes just north of Durango, Colorado. The race will take you through some of the […]
Weld County Commissioner’s Cup
Weld County Administrative Building 1150 O St., Greeley, CO, United StatesThis is a private event for Weld County employees and their families. The race is not open to the general public. Sorry!
Leadville Trail 100
Leadville 124 E. Sixth Street, Leadville, CO, United StatesThe legendary “Race Across The Sky” 100-mile run is where it all started back in 1983. This is it. The race where legends are created and limits are tested. One […]
Mt Sneffels Half Marathon
Ouray Ouray, CO, United StatesThe Mt. Sneffels Half-Marathon and Kids Fun Run began 25 years ago. In 2021, the 10 K was added. The Race is the foundation’s major fundraising event of the year. It […]
Cheyenne Mountain Run
Cheyenne Mountain State Park 410 JL Ranch Heights, Colorado Springs, CO, United StatesThe Cheyenne Mountain Run in Colorado Springs will take place on October 8, 2022 and will feature 3 trail races: a 25K to the top of Cheyenne Mountain for the more advanced trail runner, a 10K for the experienced runners and a 5K trail run for all to enjoy.
Summer Sizzler 5K
Carpenter Park 3498 E 112th Ave, Thornton, CO, United StatesJoin us for the annual Summer Sizzler! Whether you are looking to run, walk or just enjoy the race SWAG this race is a sure thing for a great time […]
Dash for Democracy 5K
City Park - Denver 1700 N York St, Denver, CO, United StatesDash for Democracy 2025 Our democracy is facing real threats—from voter suppression to attacks on fundamental rights. Now, more than ever, we must come together, take action, and defend the […]
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