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  • Great Divide Ultra

    Mueller State Park 21045 State Highway 67, Divide, CO, United States

    Experience the spring-fed meadows, massive rocks of Pikes Peak granite, and sweeping views of Colorado’s most spectacular mountains in the Great Divide Ultras. This Colorado early season 100m, 100k, 50k […]

  • Colorado 13er

    Home Depot 1200 Dillon Road Louisville CO 80027, Louisville, CO, United States

    The Colorado 13er is THE event where the best parts of trail running and road racing combine to create a truly enjoyable, kind-to-your-body, well-supported 13.1 race! Seasoned runners and first-timers […]

  • Steamboat Marathon

    Featured
    Steamboat Springs Lincoln ave, Steamboat Springs, CO, United States

    Run alongside the roaring Elk River through the emerald green pastures on Country Road 129 with the snow-capped Rocky Mountains of Colorado all around and find out why the Steamboat […]

    $40 – $100

  • RMRR Bible Park 4K

    RMRR Trophy Series
    Bible Park 6802 E Yale Ave, Denver, CO, United States

    Everyone – slow, fast, or in-between –  can win  at RMRR Trophy Series races.  With our handicap scoring system, we predict YOUR finish time based on recent running results, giving you a great […]

  • Adidas Terrex 10K Spring Runoff

    GoPro Mountain Games
    Vail Village 292 E Meadow Dr, Vail, CO, United States

    Challenge the Vail Valley’s best trail runners along with top professionals at almost 9,000 feet as you compete for a cash purse. This course will truly test your fitness with its constant […]

  • Adidas Terrex 20K Trail Run

    GoPro Mountain Games
    Vail Village 292 E Meadow Dr, Vail, CO, United States

    COURSE CHANGE FOR 2026 & BIGGER PRIZE PURSE!  A behemoth of running races, the adidas TERREX 20K Trail Run is for the boldest competitors. Destroy a near-half marathon on a difficult […]

  • Adidas Terrex Sunday Funday 5K

    GoPro Mountain Games
    Vail Village 292 E Meadow Dr, Vail, CO, United States

    NEW COURSE FOR 2026! Kick off your Sunday the fun way with fresh air, fast feet, and a 5K full of good energy. The Sunday Funday 5K is just what you need to […]

  • Walk to Cure Arthritis

    Hudson Gardens and Event Center 6115 S Santa Fe Dr, Littleton, CO, United States

    Together, let’s walk to a lifetime of Yes! Yes, to finding solutions, better treatments and a cure. Whether you have arthritis yourself or care about someone who does, sign up […]

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