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  • Marine Memorial 5K

    Apex Center 13150 W 72nd Ave, Arvada, CO, United States

    The race benefits THE United States Marine Corps Memorial dedicated "to all Marines for all time" to "Honor Marines and remember all who serve". Lives are changed when veterans visit […]

  • Pat Mahan Memorial 5K

    Wiggins High School 320 Champman St, Wiggins, CO, United States

    Join us for the Pat Mahan Memorial 5K in Wiggins, Colorado, a family-friendly event celebrating the life and legacy of Pat Mahan.  Lace up your running shoes and hit the […]

  • St. Jude Walk/Run

    Auraria Tivoli Quad 1000 Larimer St, Denver, CO, United States

    Event Description: St. Jude Walk/Run is a family friendly 5K event, taking place at Dick’s Sporting Goods Park on September 23rd. Participants come together during Childhood Cancer Awareness Month to […]

    Free

  • Move Forward 5K/10K

    Regis University 3333 Regis Blvd Denver CO, Denver, CO, United States

    The Move Forward 5K/10K is an event created by the Doctor of Physical Therapy students at Regis University as a community outreach project. The proceeds from the event will benefit Canine Companions […]

  • Mountain Marmot Trail Run

    Purgatory Resort 1 Skier Place, Durango, CO, United States

    Have you ever stood at the bottom of a mountain, staring up at the top, thinking to yourself: “I wonder if I could run all the way up there?” Well, […]

  • Rock Cut Estes Park 5K

    Rock Cut Brewing Company 390 W Riverside Drive, Estes Park, CO, United States

    Join us for The Rock Cut Estes Park 5k on September 20, 2025, for a 5k-ish, fun run event that starts and ends at this awesome taproom in Estes Park. […]

  • Be Ovary Aware 5K

    America the Beautiful Park Cimino Dr, Colorado Springs, CO, United States

    Raise awareness for ovarian cancer and raise funds to support Coloradans with 7 different types of gynecologic cancers: Ovarian, fallopian tube, uterine/endometrial, cervical, vaginal, vulvar and peritoneal cancers. This event […]

  • Race Against Suicide

    El Pomar Youth Sports Park 2230 Executive Cir, Colorado Springs, CO, United States

    The Race Against Suicide is an annual memorial and fundraising event for Pikes Peak Suicide Prevention. Participate in our 3k walk or 5k run individually or with a team in […]

  • 24 Hours of Palmer Lake

    Palmer Lake Regional Park 199 County Line Road, Palmer Lake, CO, United States

    24 Hours of Palmer Lake is back! This race features 24 hours of a gorgeous 0.82 mile loop course surrounded by mountains on top of the Palmer Divide at an […]

    $65

  • Golden Leaf Half Marathon

    Fanny Hill 120 Lower Carriage Way, Snowmass Village, CO, United States

    13.1 mile trail race with nearly 1000 ft of elevation gain from Snowmass to Aspen

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