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  • Black Squirrel Half Marathon

    Lory State Park 708 Lodgepole Dr, Bellvue, CO, United States

    The Black Squirrel Trail Half Marathon takes place on the wonderful trails of Lory State Park to the northwest of Fort Collins, CO. The trail half marathon course offers a […]

    $90 – $125

  • Devil on the Divide 50K/22K

    Minton Park Cemetery Rd, Empire, CO, United States

    We are pleased to present one of the most beautiful and challenging trail racing events in the state of Colorado with breathtaking (literally and figuratively) views of Clear Creek County […]

  • Waneka Classic Community 5K

    Waneka Lake Park 1600 Caria Dr, Lafayette, CO, United States

    A free, timed 5K, open to the public, held prior to the Centaurus Cross Country Invitational. Proceeds from the World Famous Concessions Stand and T-shirt sales benefit the Centaurus Cross […]

  • Lake Nighthorse Triathlon

    Lake Nighthorse 1795 CR 210, Durango, CO, United States

    Scenic and hilly Sprint and Olympic(standard) distance triathlons held at Lake Nighthorse Recreation Area in Durango 9/6/25 with prize money for top 3 overall male and female racers.

  • Gleneagle Spirit 5K

    Antelope Trails Elementary 15280 Jessie Dr., Colorado Springs, CO, United States

    The 2025 Gleneagle Spirit 5k is the Fourth annual event held in the Gleneagle community. The event features a 5k Run/Walk for Fun that winds through the streets of the […]

  • RexRun 5K for PAWSitivity

    Arapahoe County Fairgrouds 25690 E Quincy Ave, Aurora, CO, United States

    The RexRun 5K is a 5K run/walk to spread mental health awareness and #PAWSitivity in schools with the help of more Therapy K-9's like Arapahoe County Sheriff's Office K-9 Rex. This year's event is at Dove Valley Park in Centennial on August 6th.

    $30 – $60

  • Tater Trot 5K

    Chapman Park 300 W Prospect Ave, Monte Vista, CO, United States

    The Colorado Potato Festival will be kicking off at Chapman Park in Monte Vista with the annual Tater Trot 5K. This sponsored event is a great addition to the festival […]

  • Imogene Pass Run

    Ouray Ouray, CO, United States

    The Imogene Pass Run (IPR) is a 17.1 mile point-to-point mountain race within the western San Juan mountains of Colorado. The course runs along a route which connects the towns […]

    $60

  • Champions for Children 5K

    Prairie Gateway Park Prairie Parkway, Commerce City, CO, United States

    Join Every Child Pediatrics for the Champions for Children 5K + Fun Run, a fun and inspiring event designed to bring our community together in support of Colorado’s uninsured children. […]

  • St Vrain for the Brain 5K

    Niwot High School 8989 Niwot Road, Niwot, CO, United States

    Join us either in person or virtually on September 6th at 9:00am for a morning of fresh air, community, prizes, and more. We invite all to participate, whether that be by running, […]

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