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  • Windsor Marathon

    The Island at Pelican Lakes 1620 Pelican Lakes Point, Windsor, CO, United States

    Welcome to the annual Windsor CO Race! This year's event will start and end at The Island at Pelican Lakes in Water Valley, with a great after party including beer, […]

  • Run Crazy Horse Marathon

    Crazy Horse Memorial Ave of the Chiefs, Crazy Horse, SD, United States

    The Run Crazy Horse Marathon events begin in the shadow of the world's largest mountain carving,  Crazy Horse Memorial, and finishes in the heart of the Black Hills... Hill City, […]

  • OTILLO Swimrun

    Horsetooth Reservoir 4200 W County Road 38 E, Fort Collins, CO, United States

    Welcome to the world of ÖTILLÖ Swimrun! ÖTILLÖ Swimrun, the original swimrun race, embodies the spirit of adventure, endurance, and teamwork. Originating in Sweden, ÖTILLÖ translates to “island to island” […]

  • Tortoise & Hare 4K

    Tortiose & Hare Race Series
    Rolland Moore Park 2201 S Shields St, Fort Collins, CO, United States

    The Tortoise & Hare (T&H) is a low-key “handicap” series of seven races that are run monthly from October to April, typically on the first or second Sunday of the […]

  • Strides for Sierra 5K

    Sierra Elementary 7771 Oak St, Arvada, CO, United States

    Join us Sunday October 5th at 9:00am for the Third Annual Strides for Sierra 5K run/walk fundraiser.  Get your sweat on running or enjoy a leisurely stroll through the beautiful […]

  • PPRR Fall Series I

    PPRR Fall Series
    Bear Creek Regional Park 245 Bear Creek Road, Colorado Springs, CO, United States

    The Fall Series consists of four trail races in four different city/county parks. The trails range from well-maintained to rocky with tree roots. Each event is a unique challenge at […]

  • Liberty Energy 5K

    City Park - Denver 1700 N York St, Denver, CO, United States

    Please join Liberty for our 5K run and walk, benefitting the Bettering Human Lives Foundation. This family-friendly event will include live music, a beer garden, face painting, food trucks, and […]

  • Long View Marathon

    City Park - Fort Collins 1500 W Mulberry St, Fort Collins, CO, United States

    Showcasing a unique city-to-city trail connection, The Long View Marathon and Half Marathon runs from Fort Collins to Loveland. Together, Gnar Runners and Sweetheart City Racing bring a unique collaboration […]

    $65 – $120

  • Sage Burner Trail Race

    Hartman Rocks Recreation Area Gunnison, CO, United States

    Nestled in the Rocky Mountains, about 2 hours east of Grand Junction and 3 hours west of Denver, lies a small running jewel called Gunnison, Colorado. Visit Gunnison, and you’ll […]

  • Suffer Better 50K/25K Trail Run

    Staunton State Park 12102 S Elk Creek Rd, Pine, CO, United States

    We are stoked to once again invite you all to come run with us at Staunton State Park, off of Highway 285 near Conifer, CO, on October 15, 2022.  We […]

    $65

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