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  • Beulah Challenge

    Beulah School of Natural Sciences 8734 School House Lane, Beulah, CO, United States

    The Beulah Challenge, which started in 1996, is a 5K, 10K, and half-marathon run near Beulah, a small southern Colorado community located in the spectacular Beulah Valley nestled in the Wet Mountains. […]

    $70

  • Canceled ColorFest Color Run 5K

    Yamaguchi Park 684 S 5th St, Pagosa Springs, CO, United States

    Brilliant colors will be flying at Pagosa Springs' iconic ColorFest Color Run 5k. As participants venture out on the course, vibrantly hued hot air balloons will be filling the skies […]

  • D49 4.9K

    Falcon High School 10255 Lambert Rd, Peyton, CO, United States

    Join us for the D4.9k Run/Walk, a family-friendly event open to D49 staff, students, parents, and community members! Our mission is to offer an engaging, affordable, and healthy event for […]

  • 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, […]

  • Montbello Alive! 5K

    Parkfield Lake Park 15555 E 53rd Ave, Denver, CO, United States

    Join us for the Montbello Alive 5K, a vibrant community event that brings together runners, walkers, and families for a day of fun, wellness, and celebration. This race is part […]

  • 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. […]

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