Event details subject to change. Please confirm all information via event website.
Antelope Dash Trail Race
Nestled in the foothills of the Laramie Mountains, Curt Gowdy State Park offers a hidden gem of a trail system. The Antelope Dash takes runners through a stunning landscape of […]
Warrior Waterfront 5K
Come join us for the Warrior Waterfront 5k. This 5k will be run in conjunction with the Central High School Warrior Cross Country Invitational and all proceeds will go to […]
Jog in the Bog 5K
Now in its 28th year, the Jog in the Bog 5K is a fun opportunity to get active while supporting SLHS. Registration includes a commemorative t-shirt, goodie bag, entry into […]
Boulder 5K Taco Run
Super charge your Taco Crushing appetite with a run before the Boulder Taco Fest! A non-competitive fun run on some of Boulder’s most beautiful multi-use paths. There’s even an aid […]
Pioneer Prairie Dog Half Marathon
Westminster Promenade 10600 Westminster Blvd, Westminster, CO, United StatesWelcome to the Pioneer Prairie Dog Half Marathon event; the one that started the series! With 10k and 5k events too! Everyone is back to school and slipping into a […]
Rebel Run 5K
Be part of something bigger at Conservation Colorado’s second annual Rebel Run 5K — where movement meets momentum for our climate, air, land, water and communities. Last year, more than 230 […]
Log Hill Hustle 5K/10K
Join us for the Annual Log Hill Hustle 5K & 10K, a scenic fun run/walk hosted by Fortuna Tierra Club in support of local education. Set against the stunning backdrop […]
Central Park Kids Triathlon
Wellington Swim-Run Challenge
Swimmers may choose to swim with their shoes, paddles, a wetsuit, pull buoy, floaties, rubber duckies, inflatable flamingoes or any other nonmotorized swim aid in this event. Race Course Per […]
PH in the Park
2026 marks 17 years of community, awareness, and fundraising to support people with pulmonary hypertension. The University of Colorado Denver, Children’s Hospital Colorado, and the Pulmonary Hypertension Association invite you […]
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