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  • Run for the Ring 5K

    Barbara Davis Center for Diabetes 1775 Aurora Ct., Aurora, CO, United States

    he Guild of the Children’s Diabetes Foundation hosts the 11th Annual Run for the Ring 5K Run/Walk and Kids Fun Run, bringing together the type 1 diabetes community and supporters […]

  • Flying Colors 5K

    Loudy Simpson Park 1009 S Ranney St, Craig, CO, United States

    Join us for an untimed Fun Run/Walk to benefit Hospice in our community.  The run will kick off a fun weekend in conjunction with the Moffat County Hot Air Balloon Festival.  […]

  • Berry Picker Trail Run

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

    Who Needs an Aid Station when you can Pick Berries! A must for training for the Pikes Peak Marathon and Ascent! The race begins at 8 a.m. at the base […]

  • Kennebec Mountain Run

    La Plata Campground CR 124, Durango, CO, United States

    Join us for the Kennebec Mountain Run, a challenging 15-mile trail run through the stunning La Plata Mountains of southwest Colorado. Test your alpine running skills on this rugged course […]

  • Unicorn 5K

    Highland Heritage Park 9651 S Quebec St, Highlands Ranch, CO, United States

    Ready to get off the sofa and gallop around Highlands Ranch with some friends? Yeah, you are! Come frolic with us at the Unicorn Runner 5k in Highlands Ranch to […]

  • Two Brothers Up-and-Down 5K/10K

    Courtney Ryley Cooper Park 2350 Colorado Blvd, Idaho Springs, CO, United States

    Run your slowest 5K, then turn around and run your fastest at the Two Brothers Up-and-Down 10K on August 28th in Idaho Springs. This race climbs 1,800' in 5K and then turns around and goes back down!

  • 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 […]

  • Move with MADD 5K

    Sloan's Lake Park 1700 Utica Street, Denver, CO, United States

    Together We Can End Impaired Driving For Good! The 2026 Move With MADD Denver is Mothers Against Drunk Driving (MADD)'s signature fundraising event to help us raise awareness and funds […]

  • Winter Park Trail Runs

    Winter Park Peak to Peak Summer Showdown
    Winter Park Resort 85 Parsenn Rd, Winter Park, CO, United States

    The Winter Park Trail Runs deliver high-alpine racing at its best, featuring flowing singletrack, rugged mountain terrain, and expansive views from start to finish. Starting in the mountains and finishing […]

  • Wicked Wine Run

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

    Founded in 2013, Wicked Wine Run is the longest running and most participated Wine Run in the country. Our journey began with a passion for combining fun, fitness, and fantastic […]

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