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  • Festival in the Clouds Firefighter 5K

    Alma City Park 59 Buckskin St, Alma, CO, United States

    Start your morning the Alma way — with a little fresh mountain air, some movement, and a big stack of pancakes. Join us for the Firefighter 5K, a laid-back community […]

  • 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 […]

  • 10K and 5K @10,000 Feet

    Featured Vail Trail Running Series
    Vail Village 292 E Meadow Dr, Vail, CO, United States

    Vail Mountain's Views Won't be the Only Thing Taking Your Breath Away! The 10@10 returns to its original route on Grand Traverse. The race starts 10,000 feet above sea level, on the […]

  • Respect Life 5K

    Light of the World Catholic Church 10316 W Bowels Ave, Littleton, CO, United States

    The race is the same as last year, including the new course (the path was repaved and widened!). You can participate as a runner, walker, donator, or volunteer. 5K runners […]

  • Powderhorn Mountain Trail Climb

    Powderhorn Mountain Resort 48338 Powderhorn rd, Mesa, CO, United States

    Beat the heat with the Grand Junction Sports Commission’s Powderhorn Mountain Trail Climb. Trek up the Stagecoach Trail, take in the beauty of the Grand Mesa and Grand Valley. The […]

    $170

  • Canceled Great Escape Trail Race

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

    The Annual Royal Gorge Whitewater Festival (RGWF) features whitewater competitions and land-based recreation events to celebrate the whitewater season on the Arkansas River. Enjoy summer flows in a fantastic whitewater […]

  • Gypsum Daze 5K

    Gypsum Sports Complex 52 Lundgren Blvd, Gypsum, CO, United States

    The Gypsum Daze 5K Run/Walk is a tradition in Gypsum-32 years strong. Serious runners can go for a PR, but we invite everyone to head out for some exercise and […]

  • OCA Panda Run 5K

    Auraria Campus 1068 9th Street Park, Denver, CO, United States

    Come join Organization of Chinese Americans' Charity 5K Panda Run or OCA 1K panda walk on Saturday 7/18/2026 at 9 am at MSU - Regency Athletic Complex. Stay after the […]

    $39

  • WeldWerks Brewing 5K

    Colorado Brewery Running Series
    Weldwerks Brewing Co 508 8th Ave., Greeley, CO, United States

    Join us for the WeldWerks Brewing 5k & 10k on July 18, 2026. This fun run event starts and ends at this awesome taproom in Greeley. Run, walk, jog - […]

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