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  • Canceled Run With The Panthers 8K

    Nederland High School 597 Co Hwy 130, Nederland, CO, United States

    Come join us at 8,410' for a fun and fast 8,410meter road race! This is a fun and welcoming local race benefiting the Nederland Middle/Senior High School PTA. This is […]

  • IACP 5K Fun Run

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

    Lace up and join us for the IACP 5K Fun Run at the 2025 International Association of Chiefs of Police Conference in Denver! This lighthearted, non-competitive run is your chance […]

  • Crimson Classic 5K

    University of Denver - Carnegie Green Lawn 2150 East Evans Ave, Denver, CO, United States

    The University of Denver's Annual Crimson Classic 5K Run/1.5 Mile Walk will take place on Carnegie Green Lawn. Music, stretching, and snacks will start at 2:15pm. The focus of the […]

  • Trick or Trot 5K

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

    Join the Apex Park and Recreation District Foundation for the inaugural Trick or Trot 5K! Runners and walkers of all ages and abilities are all welcome to join us for […]

  • Spooky Sprint 5K

    Carpenter Park 3498 E 112th Ave, Thornton, CO, United States

    Get ready to lace up your sneakers (or your costume!) for Almost Home’s first-ever Spooky Sprint 5K! Join us on Saturday, October 25, 2025 at Margaret Carpenter Park in Thornton […]

  • YMCA Creepy Crawl 5K

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

    Our annual "spooky themed" race starts at the Palmer Lake Regional Recreation Area.  We head down the scenic Santa Fe Trail for a bit then turnaround and finish with a […]

  • Eerie Erie 5K/10K

    Erie United Methodist Church 604 Holbrook St, Erie, CO, United States

    The world-famous Eerie Erie is a Halloween-themed 5k and 10k race that runs through historic downtown Erie and takes advantage of our beautiful trail system that weaves along the Coal […]

  • Halloween Fun Run

    Clear Creek Middle School 320 Chicago Creek Rd, Idaho Springs, CO, United States

    This Halloween, join us for a spooky 5k or 1 mile loop through the Pioneer Cemetery in Idaho Springs!!  Try for a PR or take a leisurely stroll as you […]

  • Canceled Redrum Fun Run

    Lincoln Park - Greeley 829 10th Ave, Greeley, CO, United States

    Get ready to lace up your running shoes and unleash your spooky spirit at the Redrum Costume Fun Run 2025! Join hundreds of ghosts, goblins, superheroes, and wacky characters as […]

  • Quick Draw @ McGraw Trail Race

    McGraw Memorial Park 39 Wellington Lake Rd, Bailey, CO, United States

    Come one, come all! And join us in the "Quick Draw @ McGraw" 2 Mile Trail Run, organized and hosted by CRATES Colorado and benefitting McGraw Memorial Park. This challenging […]

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