Event details subject to change. Please confirm all information via event website.

  • Heritage Eagles 5K

    Heritage High School 1401 W Geddes Ave, Littleton, CO, United States

    Support the Heritage Eagles cross country team at the annual Heritage Eagles 5K. Last year's race, raised over $3,500 for the Heritage Eagles xc team; $ 10.00 of every registration […]

  • Staunton State Park 6 Mile

    Staunton State Park 12102 S Elk Creek Rd, Pine, CO, United States

    The second of Evergreen Park and Recreation District's four-race trail series. Join us at Staunton State Park for a beautiful 6-mile trail race. Please bring a water bottle; this is […]

  • CMRA Elk Meadow Trail Run

    Elk Meadow Park 2855 Bergen Peak Drive, Evergreen, CO, United States

    Come up to scenic Elk Meadow Open Space for an exhilarating 5.1 mile trail run. This is a timed event that starts and ends near the Lewis Ridge Trail Head.

  • Grin & Bear It Trail Race

    Crested Butte Nordic Center 620 2nd St, Crested Butte, CO, United States

    The Grin & Bear It is Crested Butte’s oldest trail challenge. Historically presented as a sprint to Green Lake and back, this classic event has evolved to offer a 25k […]

  • Race in the Clouds Dirt Festival

    Buckskin Cemetery 227 Buckskin Street, Alma, CO, United States

    Get ready for a day of exciting outdoor activities at 10,600 feet in beautiful Alma, Colorado! Our dirt festival has something for everyone: mountain bike racing, trail running, a free […]

  • NoCo All-Comers Track Meet #3

    Loveland High School 920 West 29th St., Loveland, CO, United States

    This is the third in a series of four track meets in Northern Colorado during the summer of 2025. The meet will take place at Loveland High School and features […]

  • Summit Trail Running Series IV

    Tom's Baby Trailhead 1283 Gold Run Rd, Breckenridge, CO, United States

    Explore 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 […]

  • High Lonesome 100

    County Road 321 Nathrop, CO, United States

    The High Lonesome 100 is a high flying endurance race in the Sawatch range of the Colorado Rocky Mountains. With 22,500' of vertical gain and reaching an elevation of 13,150', it's a hell of a course. The race runs in a loop through some of the most beautiful single track in the state, and takes runners on the Continental Divide and Colorado Trail, through 2 ghost towns, over 5 alpine passes, through remote basins, and over soaring ridges. This year's event takes place on July 30th.

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