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  • 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.

  • Shiprock Marathon

    Shiprock Youth Center 4198 US 491, Shiprock, NM, United States

    The Shiprock 5K Trail Race will take place at 5:00 p.m. on Friday, May 1 on the Blueberry Hill course, beginning and ending at the Youth Center.  There are awards for […]

  • 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!

  • Foster Care 5K

    Riverdale Regional Park 9755 Henderson Road, Brighton, CO, United States

    Adams County will host its annual 5K race, and 1 mile fun run at the Riverdale Regional Park which is home to the Adams County Fair.  Registration opens at 6:45 […]

  • 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 […]

  • runBlossom 5K

    Centennial Park - Cañon City Cañon City, CO, United States

    Event Information: For 20 years, the annual runBlossom race has helped usher in the summer season in Cañon City. As the snow melts and the leaves begin to adorn trees, […]

  • Niwot’s Challenge

    Sedalia Post Office 4195 Douglas Ave, Sedalia, CO, United States

    Niwot’s Challenge is a very difficult, grass-roots, ultramarathon in Colorado’s Front Range. It is modeled after the arduous Barkley Marathons in Tennessee, and the historic More and More Difficult 50K […]

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