Event details subject to change. Please confirm all information via event website.
Med Bow Rail Marathon
The Friends of the Medicine Bow Rail Trail will host the second annual Med Bow Rail Marathon & Half Marathon on August 13th, 2022 at Lake Owen in the Medicine Bow National Forest near Laramie, Wyoming.
Frontier Academy Community 5K
The Frontier Academy Community 5K is meant to serve the community of Greeley and the surrounding area. Through this race we hope to fulfill the vision and mission of our […]
Sunrise Stampede 5K
The Sunrise Stampede 5K with a 1-mile fun run is a family-oriented run/walk that has raised $270,000+ for student programs in the St. Vrain Valley School District. All net proceeds […]
Wild West Backyard Ultra
The MOCO Trails Wild West Backyard Ultra is a community-driven endurance event held at beautiful Loudy Simpson Park in Craig, Colorado along the banks of the Yampa River. This race […]
Miles for Migraine 5K
Miles for Migraine will host its annual 2-mile Walk (or Intentional Movement of your choice), 5K Run and Relax Denver Event. This event is a fundraiser for Migraine & Headache […]
Just Peachy 5K
Join the Grand Junction Sports Commission for the Just Peachy 5K presented by Grand Valley Primary Care Palisade (Community Hospital) on Saturday, August 19th. This fun 5K is great for […]
Erie Half & 5K
Join us for the Erie Half and 5k! The Hometown Race Series features half marathons and 5k distance events in outlying communities outside the Denver and Boulder metro areas. LOOK […]
Outdoor Divas Triathlon
The Outdoor Divas Sprint Triathlon on August 21st, annually awarded best women's event in Colorado by Competitor Magazine, is the all women's triathlon you've been waiting for! We intentionally keep […]
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, […]
La Garita 200
The La Garita 200 is Southern Colorado’s brand new 200 mile race held in the amazing La Garita mountains. The course consists of a giant loop starting in finishing and […]
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.