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  • RMRR Blue Heron Half Marathon and 5K

    RMRR Marathon Training Series
    Riverdale Regional Park 9755 Henderson Road, Brighton, CO, United States

    The Blue Heron Half Marathon and 5K courses are flat and fast, along the S Platte River. Along the way you will enjoy wildlife, placid waters, and scenic views. Join the Rocky Mountain Road Runners on April 24th at the Adams County Regional Park in Brighton.

  • Spring Runoff 10M

    Dutch Clark Stadium 1000 W. Abriendo Ave, Pueblo, CO, United States

    The American Driving Academy and the Southern Colorado Runners welcome you to the 48th Annual Spring Runoff Sunday, March 2nd, 2025. Join us for the 48th edition of Pueblo’s oldest […]

  • Unicorn 5K

    Great Lawn Park 101 Yosemite St, Denver, CO, United States

    Ready to gallop around Denver with some friends? Yeah, you are! Come frolic with us at the Unicorn Runner 5k at Great Lawn Park to kick off your spring running […]

  • Flying Pig 5K

    Spring Canyon Park 3156 S Overland Trail, Fort Collins, CO, United States

    JOIN US FOR THE 17TH ANNUAL FLYING PIG 5K The Flying Pig 5K is a fundraiser that will benefit children’s programs at Foothills Gateway, including the Family Support Services Program […]

  • Dash and Dine 5K #1

    Dash and Dine 5K
    Boulder Reservoir 5565 N 51st St, Boulder, CO, United States

    The Dash & Dine 5k run, Boulder’s favorite spring tune-up run series is back for 4 races in May at the beautiful Boulder Reservoir in Boulder, CO.

  • Take 5 in the Garden of the Gods

    Garden of the Gods Park 1805 N 30th St, Colorado Springs, CO, United States

    Who can turn down a morning in Garden of the Gods? We'll close the park to traffic, so runners can enjoy their race, traffic free! Choose between a 5k or […]

  • Greenland Trail Race

    Featured
    Greenland Open Space 1532 E Noe Rd, Larkspur, CO, United States

    The Greenland Trail Race offers four outstanding distances in southern Douglas County. Run the 4 Miler, the 8 Miler, the 25K, or tackle the 50K ultramarathon, Colorado’s fastest 50K! With Pikes Peak as your backdrop, you’ll cruise over a soft dirt trail on your way to a new personal best. With chip timing, an innovative technical running shirt in men’s and women’s sizing, food and beer at the finish, this race will make you want to come back for more!

  • High Line Canal Run

    South Suburban Race Series
    deKoevend Park 6315 S. University Blvd., Centennial, CO, United States

    The 45th Annual High Line Canal 5K & 10K race takes place along the beautiful High Line Canal Trail. Registration includes post-race pancake breakfast.

  • Collegiate Peaks Trial Run

    Buena Vista Community Center 715 E Main St, Buena Vista, CO, United States

    The Collegiate Peaks Trail Run takes place in Buena Vista, Colorado and offers two race distance options - 25 miles and 50 miles. The race was established in 1991 and […]

  • PPRR Nielson Challenge

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

    Race Format The first time you run this event, you'll establish a base time for yourself. This base time is used to generate a handicap time. The handicap time is […]

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