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  • Halloween Fun Run

    Clear Creek Middle School 320 Chicago Creek Rd, Idaho Springs, CO, United States

    This Halloween, join us for a spooky 5k or 1 mile loop through the Pioneer Cemetery in Idaho Springs!!  Try for a PR or take a leisurely stroll as you […]

  • Canceled Redrum Fun Run

    Lincoln Park - Greeley 829 10th Ave, Greeley, CO, United States

    Get ready to lace up your running shoes and unleash your spooky spirit at the Redrum Costume Fun Run 2025! Join hundreds of ghosts, goblins, superheroes, and wacky characters as […]

  • Quick Draw @ McGraw Trail Race

    McGraw Memorial Park 39 Wellington Lake Rd, Bailey, CO, United States

    Come one, come all! And join us in the "Quick Draw @ McGraw" 2 Mile Trail Run, organized and hosted by CRATES Colorado and benefitting McGraw Memorial Park. This challenging […]

  • BOO Run 5K

    Grand Valley Brew Runs
    WestCo Brewing 905 Struthers Ave, Grand Junction, CO, United States

    Costume up and bring your family and friends, we will haunt the town on our 5k route along the river while taking in the beautiful fall colors followed by a […]

  • Spooky Sprint 5K

    Pueblo YMCA 3200 E. Spaulding Ave, Pueblo, CO, United States

    This eerie evening race winds through a chilling course at the YMCA of Pueblo. The thrilling Halloween themed race is perfect for all ages and fitness levels. Recommended for those […]

  • The Stride 5K/10K

    Featured
    Littleton Museum 6028 S. Gallup St., Littleton, CO, United States

    You’re invited to The Stride, a family-friendly 5K, 10K, Kids Fun Run, and Wellness Expo in Littleton on October 24th. Benefitting the Littleton Public Schools Foundation, this event brings together the community for a great cause. 

    $17 – $46

  • Veterans Services Freedom 5K

    Roudebush Cottage 1815 8th Ave, Greeley, CO, United States

    This year UNC Veterans Services is hosting the UNC Freedom 5k. The run is a 3.1-mile route of obstacle-free running that is open to walkers, runners, ruckers, children, strollers, and […]

  • Colleen De Reuck XC Classic

    Harlow Platts Community Park 1360 Gillaspie Drive, Boulder, CO, United States

    The Colleen De Reuck Cross Country Classic is a XC meet honoring one of the world's greatest ever distance athletes and Boulder local, Colleen De Reuck. Every year we will celebrate […]

  • Trails 5K

    Piney Creek Hollow Park 6410 S Tower Rd, Aurora, CO, United States

    Our mission is to bring awareness and support the struggles of mental health of youth, teens, adults and families in our community.  Many battles are related to mental health including […]

  • COMEA Turkey Trot 5K

    COMEA Shelter 1421 W. Lincolnway, Cheyenne, WY, United States

    Get ready for a festive and family-friendly Thanksgiving-themed tradition that supports the Cheyenne COMEA Shelter for the homeless. The COMEA Turkey Trot is back and better than ever! We’re kicking […]

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