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

  • The Fast and the Curious 5K/10K

    Santa Rita Park Camino Del Rio, Durango, CO, United States

    The Durango and Cortez Adult Education Center is delighted to announce our annual fun run! The Fast and the Curious is a 5k/10k run that not only celebrates physical fitness but also highlights cognitive fitness. In this way, the race spotlights our dedication to education as well as the irrefutable link between physical health and […]

  • Walk Like MADD

    Windsor Lake 100 N. 5th St., Windsor, CO, United States

    Walk Like MADD is MADD's signature fundraising event to help us raise both awareness and funds to end drunk driving and fight drugged driving. With every step taken and each dollar raised, walkers are supporting MADD’s lifesaving mission to keep our families and communities safe.

  • USAFA Half Marathon

    Farish Recreation Area 12005 Rampart Range Rd, Woodland Park, CO, United States
  • Miles for Migraine 5K

    Great Lawn Park 101 Yosemite St, Denver, CO, United States

    Miles for Migraine will host its annual 2-mile Walk (or Intentional Movement of your choice), 5K Run and Relax Denver Event. This event is a fundraiser for Migraine & Headache Awareness, Treatment & Research. It's more than a walk/run - come connect with your local migraine & headache community, listen to our speakers & visit sponsors […]

  • Grizzly 2 Mile

    Thunder Ridge High School 1991 W Wildcat Reserve Pkwy, Highlands Ranch, CO, United States

    Every year TRXC hosts a race to begin the season and celebrate ThunderRidge High School Cross Country.  This season we will be holding a Grizzly 2-mile on the ThunderRidge campus to get the season going!  We are excited to give the community the opportunity to contribute to the program and race on campus.  Please register […]

  • Buffalo Run 5K

    Grand Lake Center 301 Marina Dr, Grand Lake, CO, United States

    Held during Grand Lake's iconic Buffalo Days weekend, the Buffalo Run 5k route passes through the charming town of Grand Lake, along the scenic shores of Colorado's highest and deepest natural lake, and past historic landmarks for one of the most unique races you'll ever experience! The race starts and ends at the Grand Lake […]

  • Race for Research 5K

    Washington Park - Denver 701 S Franklin St, Denver, CO, United States

    The Annual Cancer League of Colorado Race for Research 5K is excited to be back to the full event you love at Washington Park in Denver! The Race for Research raises money for the Cancer League of Colorado, a non-profit charitable organization that is run entirely by volunteers with no paid staff or offices. The […]

  • Impact Uganda 5K/10K

    Howell Construction 8085 E Harvard Ave, Denver, CO, United States

    UPDATE: New Route and New Swag The new route starts at the same location and avoids crossing streets. Check out the new SWAG for this year. The Fifth Annual Impact Uganda Fun Run, an in-person run in Denver on August 17th at 8am, and a virtual run option for those who can't make it (or those who don't want to run […]

    $39
  • We Run So They May Walk 5K

    Saint Peter Lutheran Church 9300 East Belleview Ave, Englewood, CO, United States

    When: Saturday, August 23, 2025, 8:00 a.m. (Check-in begins at 7:15 a.m.) Where: begins and ends at Saint Peter Lutheran Church, 9300 E. Belleview Ave., Greenwood Village. $40  includes race registration plus T-shirt $15 includes youth (6-17) registration plus T-shirt Children 5 & under are free, but a donation of $15 is suggested if a […]

  • Rio Grande 100

    Brown Memorial Park 86 County Road 15, South Fork, CO, United States

    The Rio Grande 100 starts and finishes on the banks of the mighty Rio Grande River in beautiful South Fork, Colorado. The race takes you though the amazing La Garita mountains, from arid forest to alpine tundra peaking out over 12,000 foot above sea level 4 times. You will enjoy golden aspen leaf covered trails […]

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