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  • 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 […]

  • Spooky Sprint Half Marathon

    Chatfield State Park 11500 N Roxborough Park Road, Littleton, CO, United States

    Join us for the annual Spooky Sprint 5k/10k & Half Marathon! A fun, Halloween-themed event that is perfect for the whole family.

  • 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, […]

  • Rut Run 5K

    United Methodist Church - Estes Park 1509 Fish Hatchery Rd, Estes Park, CO, United States

    With the Fall Season, Estes Park shines in colors and wilderness experiences! Herds of Elk begin to roam the meadows and open fields; while sounds of bugling Bull Elk call […]

  • I Can 5K

    Carpenter Park 3498 E 112th Ave, Thornton, CO, United States

    You CAN 5k. This event is for EVERY ONE. EVERY BODY. You won't get lost. You won't get forgotten. You'll run a clearly marked 5k loop with multiple portojohns & […]

  • Miles for Moms

    Huston Lake Park 850 S Bryant St, Denver, CO, United States

    Join us at the FloCrit campus and surrounding neighborhoods in southwest Denver for the Annual Miles for Moms Run/Walk/Roll! Lace up your running shoes for a fantastic 3-mile fundraiser run, […]

  • Grace Race 5K

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

    Help eRace World Hunger at Rainbow Trail Lutheran Camp’s Annual Grace Race!  This annual 5k run/walk was started as part of RTLC’s 50th anniversary in 2007, to raise money for […]

  • Hot Chocolate 15K/10K/5K

    Washington Park - Denver 701 S Franklin St, Denver, CO, United States

    Start and finish at Civic Center Park amongst Denver's biggest chocolate aficionados. All participants receive a technical running quarter zip with registration. Runners can also enjoy hot chocolate, chocolate fondue, […]

  • 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, […]

  • 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” […]

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