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

  • 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 for Independence and the Foundation for Physical Therapy.

  • 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 of the Montbello Alive! celebration, an annual event for our thriving community's culture, spirit, and togetherness. Whether you're an experienced runner aiming for a personal […]

  • 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. Run, walk, jog - whatever goes! Complete the course and celebrate with us and a FREE, local craft brew at the finish line. Start windows […]

  • 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 benefits Sue Gift - Gynecologic Cancer Support.

  • 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

  • Lisa Nelson’s Mustang Stampede 5K

    Ralston Valley High School 13355 West 80th Avenue, Arvada, CO, United States

    Lisa Nelson's Annual Mustang Stampede 5K Memorial Scholarship Run/Walk in memory of Lisa Nelson, a beloved faculty member of Ralston Valley High School. Lisa passed away from cervical cancer in March 2013.  The purpose of this 5K Run/Walk is to unify the local community in commeration of her life and raise funds for a college […]

  • Mountain Chile Cha Cha Trail Races

    Reservoir River Ranch Pagosa Springs, CO, United States

    The Mountain Chile Cha Cha Trail Race offers a 5K and 10k race. The races begin just outside downtown Pagosa Springs, CO, on Reservoir River Ranch, where you'll run on jeep and ATV trails and enjoy breathtaking views of the San Juan Mountains. The course offers varied terrains - fast flats, moderate slow hill climbs, […]

  • Heritage Days 5K

    Mill Street Bistro 135 W Mill St, Bayfield, CO, United States

    Enjoy a beautiful, fun 5k after watching the sheep come through town, and the parade. We will start at the end of the parade on Mill Street and end at Eagle Park! Timing is variable since the sheep march to the beat of their own drum, but the tentative start time is 10:30am. Come experience […]

  • Mesa County Search & Rescue 5K

    Snooks Bottom Open Space 915 Diana Ct, Fruita, CO, United States

    Fruita Fall Festival - Mesa County Search & Rescue 5K Race HOSTED BY MESA COUNTY SEARCH AND RESCUE SUPPORT OUR MISSION TO RESCUE AND SAVE LIVES EARLY REGISTATION $35 / REGISTRATION AFTER SEP 1 st $50 WHAT: Annual 5k race. Prizes for first and second place winners in each category. Enjoyment for ALL! Racers can […]

  • Estes Epic

    Estes Park High School 1600 Manford Ave, Estes Park, CO, United States

    Join us for the Estes Epic — a premier event featuring a 50k Bike Race, 50k Run, and Heavy Half Marathon. After a six-year hiatus, this challenging race returns, offering participants rugged trails, significant climbs, and breathtaking views of Rocky Mountain National Park. Event Details: 50k Bike Race (Saturday) Tackle 50 kilometers of demanding terrain, […]

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