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Upcoming marathons in Colorado

July 2027

  1. Hardrock 100
    100 Mile
    Silverton, CO, USA
  2. Silverton Alpine Marathon
    Marathon, 50K, 8M
    Silverton, CO, USA
  3. Aspen Backcountry Marathon
    50K, Marathon, Heavy Half Marathon
    Aspen, CO, USA

September 2027

  1. Autumn Run
    Half Marathon, 10K, 5K
    Buena Vista, CO, USA
  2. All-Out Fallfest Half Marathon
    Half Marathon, 10K, 5K
    Westminster, CO, USA
  3. Pikes Peak Marathon
    Marathon, Half Marathon
    Manitou Springs, CO, USA
  4. Boulderthon Marathon
    Marathon, Half Marathon, 10K, 5K
    Boulder, CO, USA

May 2027

  1. Colorado Marathon
    Marathon, Half Marathon, 10K, 5K
    Fort Collins, CO, USA
  2. Hometown Half Marathon - Denver
    5K, 10K, Half Marathon, 1 Mile
    Denver, CO, USA
  3. Colfax Marathon
    Marathon, Half Marathon, 10M, 5K
    Denver, CO, USA
  4. BOLDERBoulder
    10K
    Boulder, CO, USA

June 2027

  1. Steamboat Marathon
    Marathon, Half Marathon, 10K
    Steamboat Springs, CO, USA
  2. Estes Park Marathon
    Marathon, Half Marathon, 5K, Estes Trail Descent, Longs Peak 5 Miler
    Estes Park, CO, USA
  3. Leadville Trail Marathon & Heavy Half
    Marathon, Heavy Half Marathon
    Leadville, CO, USA

August 2027

  1. Bound for Boston Marathon (Denver)
    Half Marathon
    Denver, CO, USA
  2. Leadville Trail 100
    100 Mile
    Leadville, CO, USA
  3. Mt. Sneffels Half Marathon
    Half Marathon, 10K
    Ouray, CO, USA
  4. TBK Bank Thirsty 13 Half Marathon
    Half Marathon
    Durango, CO, USA

October 2027

  1. Colorado Springs Marathon
    Marathon, Half Marathon, 5K, Kids K
    Colorado Springs, CO, USA
  2. Windsor Marathon
    Marathon, Half Marathon, 10K, 5K, 1 Mile Fit & Fun Run
    Windsor, CO, USA

March 2027

  1. That Dam Run Half Marathon
    Half Marathon, 10K, 5K
    Greenwood Village, CO, USA
  2. Run Through Time Marathon
    Marathon, Half Marathon, 2M
    Salida, CO, USA

April 2027

  1. Bigfoot Half Marathon
    Half Marathon, 5K
    Estes Park, CO, USA