Vallecito Lake Heavy Half

Vallecito Lake 17454 Co Rd 501, Bayfield, CO, United States

The 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 […]

Women’s Distance Festival 5K

North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United States

The Womens’ Distance Festival is no longer an event for “women only”. This event is now a “community” event, supporting the Girls on the Run® of the Rockies. Girls on […]

Heart & Sole Half Marathon

Boulder Reservoir 5565 N 51st St, Boulder, CO, United States

On Mother's Day, May 12th, 2024 the Heart & Sole Mother's Day Half Marathon, 10K and 5K returns to Boulder County! We will have so many amazing opportunities at this […]

Head and Neck 5K

Carpenter Park 3498 E 112th Ave, Thornton, CO, United States

Get ready for a 5K & 2-Mile walk that begins and ends at the beautiful Carpenter Park. Participants can join us for an in-person run or walk run on their […]

Fruita Trail Half Marathon

18 Road 18 Road, Fruita, CO, United States

This exciting half marathon course is a fun loop on the beautiful flowy single track in Fruita CO. With short steep climbs and descents featuring beautiful views of the nearby […]

$105

Ram Party Trail Runs

Buffalo Lodge Bicycle Resort 2 El Paso Blvd, Colorado Springs, CO, United States

We're having a Ram Party! Come party with us. With plenty of race options for everybody centered around the beautiful Rampart Reservoir in Woodland Park, Colorado, you're sure to have […]

Dog Jog 5K

Laramie Community College 1400 E College Dr, Cheyenne, WY, United States

The Dog Jog 5k is back and better than ever! Join the pack and run for a cause. This dog friendly 5k welcomes runners and walkers of all ages (even […]

$35

Memorial Day Run and March

Douglas County High School 2842 Front St, Castle Rock, CO, United States

Colorado Veterans Project is set to host the eighth annual Memorial Day Run & March, which will raise funds and collect non-perishable food donations for local veterans experiencing homelessness. Athletes […]

Tails on the Trail 5K

Salida Steamplant Sacket and G Streets, Salida, CO, United States

The Tails on the Trail 5K is a family and dog-friendly 5k race with proceeds benefiting the life-saving work of Ark-Valley Humane Society. Race this with or without your dog on May 22nd at Loyal Duke's Dog Park in Salida.

Boneyard Boogie Trail Run

Eagle Pool and Ice Rink 1700 Bull Pasture Road, Eagle, CO, United States

The Dynafit Boneyard Boogie kicks off the Vail Trail Running Series with an 13K scamper through pinyon groves and juniper shrubs on some of Eagle's most scenic single track with […]

Please click here to submit your event for FREE to our online calendar.
We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.