Find Your Next Marathon Colorado Race
Each Marathon Colorado race has links to its marketing page and registration page.
View all races in ColoradoBoulderthon - Inaugural Downtown Boulder Marathon & Half Marathon
Oct 11, 2026 (Estimated)
2026 Breckenridge Road Marathon
Saturday Oct 10, 2026
Castle Rock Trail Festival
Oct 6, 2026 (Estimated)
Making Calories Count Marathon
Jul 30, 2026 (Estimated)
Fall Equinox
Sep 30, 2026 (Estimated)
Palisade Brews and Shoes Half Marathon
May 14, 2027 (Estimated)
9 reviews
Steamboat Stampede
Jan 31, 2027 (Estimated)
Mountain Mining Days Marathon Relay
Aug 28, 2026 (Estimated)
1 reviews
Aspen Backcountry Marathon
Aug 12, 2026 (Estimated)
Aspen Valley Marathon
Jul 15, 2027 (Estimated)
Salomon Boulder Mountain Marathon
May 21, 2027 (Estimated)
Breck Crest Mountain Marathon
Aug 31, 2026 (Estimated)
Breckenridge Road Marathon, Half Marathon & 10K
Sep 16, 2026 (Estimated)
Runs With Scissors Marathon
Apr 22, 2027 (Estimated)
American Discovery Trail Marathon
Sep 4, 2026 (Estimated)
Chosen Marathon & Half Marathon
Apr 2, 2027 (Estimated)
NORAD Trail Race Marathon, Half Marathon & 4-Mile
May 21, 2027 (Estimated)
Paul Mitchell XTERRA Marathon Of Trail Races
Oct 8, 2026 (Estimated)
Xterra Marathon of Trail Races
Oct 8, 2026 (Estimated)
Runoff Runoff Marathon
Jun 17, 2027 (Estimated)
Gothic to Crested Butte 1/3rd Marathon
Jul 4, 2027 (Estimated)
1 reviews
Colfax Marathon
May 21, 2027 (Estimated)
Colfax Marathon, Half Marathon, Relay & Urban 10-Miler
May 21, 2027 (Estimated)
Janus Rock N Roll Denver Marathon
Oct 18, 2026 (Estimated)
Kaiser Permanente Colfax Marathon
May 21, 2027 (Estimated)
REVEL Rockies Marathon
Jun 11, 2027 (Estimated)
RMRR Spring Marathon Training Series
Apr 9, 2027 (Estimated)
Mueller Marathon
Jun 10, 2027 (Estimated)
Durango Marathon
Oct 11, 2026 (Estimated)
Southwest Series Marathon, Half Marathon, 10K & 5K - Day 2
Nov 6, 2026 (Estimated)
EP Medical Center Estes Park Marathon
Jun 17, 2027 (Estimated)
Estes Park Marathon, Half Marathon, 10K & 5K
Jun 18, 2027 (Estimated)
Fall Classic Marathon
Sep 25, 2026 (Estimated)
Revel Rockies Marathon & Half Marathon
Jun 11, 2027 (Estimated)
South Park Trail Marathon & Half Marathon
Jun 10, 2027 (Estimated)
Blue Sky Marathon
Oct 21, 2026 (Estimated)
Colorado Marathon
May 7, 2027 (Estimated)
Colorado Marathon prev. Fort Collins Old Town Marathon
May 7, 2027 (Estimated)
Colorado Marathon, Half Marathon, 5K & 10K
May 7, 2027 (Estimated)
Desert RATS Trail Running Festival - Trail Marathon & 50K
Apr 15, 2027 (Estimated)
US Bank Rim Rock Marathon
Nov 4, 2026 (Estimated)
Dust Bowl Series Marathon - Colorado
Mar 25, 2027 (Estimated)
GECKO Rocky Mountain High-est Leadville Marathon
Sep 6, 2026 (Estimated)
Leadville Trail Marathon
Jun 17, 2027 (Estimated)
Loveland Marathon
Sep 25, 2026 (Estimated)
Pikes Peak Marathon
Aug 20, 2026 (Estimated)
Mount Sneffels Marathon & Half Marathon
Aug 12, 2026 (Estimated)
Mt. Sneffels Marathon
Aug 12, 2026 (Estimated)
XTERRA Turkey Track Trail Marathon
Jun 3, 2027 (Estimated)
Pueblo Marathon & Half Marathon
Feb 26, 2027 (Estimated)
Run Through Time Marathon
Mar 18, 2027 (Estimated)
Silverton Alpine Marathon
Aug 19, 2026 (Estimated)
Steamboat Marathon
Jun 4, 2027 (Estimated)
Steamboat Marathon, Half Marathon & 10K
Jun 4, 2027 (Estimated)
Steamboat Stinger Marathon & Half Marathon
Aug 13, 2026 (Estimated)
Center of the Nation Marathon - Colorado
Sep 16, 2026 (Estimated)
Vail Valor Marathon
May 29, 2027 (Estimated)
Vail Victory Trail Marathon
May 25, 2027 (Estimated)
Walsh Marathon
Sep 4, 2026 (Estimated)
Hermit Pass Marathon
Sep 6, 2026 (Estimated)
All-Out Beat the Heat Marathon
Apr 15, 2027 (Estimated)
All-Out Fallfest Marathon
Sep 23, 2026 (Estimated)
RMRR Fall Marathon Training Series
Sep 10, 2026 (Estimated)
Find Your Next Marathon Colorado Race Near You
Find your next Colorado race by city. These races have star ratings, race maps, race results, race reviews, race charities, race products, etc.
All Colorado racesFind Your Next Marathon Colorado Charity Race
Some Marathon Colorado races may support a charity and raise funds to support and raise charitable donations. These charities may have fundraising teams that run for a cause and allow you to make a difference while running for a charity.
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