Marathons in Colorado
23 races
American Heroes Run
MarathonUltra
September 12, 2026Longmont, CO, USA
Colorado Fall Equinox Marathon
MarathonHalf MarathonBQ
September 20, 2026Fort Collins, CO, USA
Pikes Peak Marathon
MarathonHalf Marathon
September 20, 2026Manitou Springs, CO, USA
Boulderthon Marathon
MarathonHalf MarathonBQ
September 27, 2026Boulder, CO, USA
Colorado Springs Marathon
MarathonHalf Marathon
October 03, 2026Colorado Springs, CO, USA
Windsor Marathon
MarathonHalf Marathon
October 04, 2026Windsor, CO, USA
Long View Marathon
MarathonHalf MarathonBQ
October 10, 2026Loveland, CO, USA
Breckenridge Road Marathon
MarathonHalf Marathon
October 11, 2026Breckenridge, CO, USA
Durango Marathon
MarathonHalf Marathon
October 11, 2026Durango, CO, USA
Blue Sky Marathon
MarathonHalf Marathon
October 17, 2026Fort Collins, CO, USA
Rim Rock Marathon
MarathonHalf Marathon
November 01, 2026Fruita, CO, USA
Run Through Time Marathon
MarathonHalf Marathon
March 13, 2027Salida, CO, USA
Colorado Marathon
MarathonHalf MarathonBQ
May 02, 2027Fort Collins, CO, USA
Colfax Marathon
MarathonHalf MarathonBQ
May 16, 2027Denver, CO, USA
Steamboat Marathon
MarathonHalf MarathonBQ
June 06, 2027Steamboat Springs, CO, USA
Estes Park Marathon
MarathonHalf Marathon
June 20, 2027Estes Park, CO, USA
Runs With Scissors Races
MarathonUltra
2027 TBD · AprilBrighton, CO, USA
Leadville Trail Marathon & Heavy Half
Marathon
2027 TBD · JuneLeadville, CO, USA
Silverton Alpine Marathon
MarathonUltra
2027 TBD · JulySilverton, CO, USA
Aspen Valley Marathon
MarathonHalf MarathonBQ
2027 TBD · JulyAspen, CO, USA
Aspen Backcountry Marathon
MarathonUltra
2027 TBD · AugustAspen, CO, USA
Boulder Rez Marathon
MarathonHalf MarathonBQ
2027 TBD · AugustBoulder, CO, USA
Staunton Rocks! Marathon
MarathonHalf Marathon
2027 TBD · AugustPine, CO, USA