Event details subject to change. Please confirm all information via event website.

  • PPRR Nielson Challenge

    PPRR Nielson Challenge
    North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United States

    Race Format The first time you run this event, you'll establish a base time for yourself. This base time is used to generate a handicap time. The handicap time is […]

  • 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 […]

  • Sole Mates 5K

    Shoes and Brews 63 S. Pratt Parkway, Unit B, Longmont, CO, United States

    Shoes & Brews along with our "Sole Mates" Left Hand Brewing and Hoka present the 9th edition of our fall race series.  With a focus on community, running, beer and […]

  • Girls on the Run 5K

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

    Each season comes to an end with a joyful and fun non-competitive 5K (3.1 miles). This culmination gives girls a tangible sense of accomplishment and the confidence to be the […]

  • Dia de los Muertos 5K

    Colorado Brewery Running Series
    Cheluna Brewing 2501 Dallas Street, Aurora, CO, United States

    Join us for our Dia de los Muertos 5k run @ Cheluna Brewing on November 1, 2025, for a 5k-ish, fun run event that starts and ends at this awesome […]

  • Feet for Justice 5K/10K

    City Park - Denver 1700 N York St, Denver, CO, United States

    Join us for the Feet for Justice Run IN-PERSON this November! The Feet for Justice Run is a family-friendly event in Denver that brings together the community members, businesses, and […]

  • Dragon Dash 5K

    Stapleton Central Park 8801 Martin Luther King Jr Blvd, Denver, CO, United States

    This fun community oriented walk for all levels of fitness and all ages in support of the Isabella Bird Community School, a ECE-5th Grade School in Denver, CO.

  • Please click here to submit your event for FREE to our online calendar.
    We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
    Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.