Colorado Multisport Calendar

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  • Yeti Chase logo

    Yeti Chase 5K & 10K

    Bear Creek Lake Park (Lakewood) 15600 W. Morrison Road, Lakewood, CO, United States

    The Yeti Chase 5K & 10K take place at beautiful Bear Creek Lake Park in Lakewood. This is the 13th year for the Yeti Chase, and it has sold out […]

  • Ralston Creek Half Marathon logo

    Ralston Creek Half-Marathon & 5K

    Arvada Arvada, CO, United States

    The Ralston Creek Half-Marathon & 5K has become Colorado’s premier winter half marathon! Finisher Medals for Half Marathon finishers and a generous 4:30 cutoff time. Courses follow a scenic mix […]

  • BBSC Endurance Sports

    Boulder Rez Half

    Boulder Reservoir 5275 Reservoir Road, Boulder, CO, United States

    This spring race features a spectator-friendly Half Marathon, 10K and 5K course. Attracting athletes from all over the west due to its phenomenal scenery, glamorous finisher medals, perfect running temperatures […]

  • Timberview Trail Run

    Boyd Lake State Park (Loveland) 3720 N County Road 11-C, Loveland, CO, United States

    Crisp morning air and a summer sunrise in Colorado. YES PLEASE! Join us on the foothills at Lory State Park for a fun & beautiful morning trail race experience. This […]

  • Narrowleaf Lake Run

    Boyd Lake State Park (Loveland) 3720 N County Road 11-C, Loveland, CO, United States

    Brisk autumn running in Colorado – OH YEA! Join us for a family fun event with FIVE distance options at the beautiful Boyd Lake State Park venue. Choose your adventure! […]

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