Road and trail, worldwide
Races in Colorado
53 racesupcoming
There are 53 upcoming races in Colorado on the calendar, from September 2026 to September 2027. The next is 24 Hours of Palmer Lake on September 26, 2026. The most climbing is at Hardrock 100 Endurance Run: 34,147 ft (10,408 m). 45 are trail races and 8 are on the road.
September 2026
October 2026
- Above the Clouds Ultra50KTrailWoodland Park, CO
- Colorado Springs MarathonMarathonRoadColorado Springs, CO
- Grand Valley BackyardBYUTrailLoma, CO499 ft
- Sage Burner Trail Race50KTrailGunnison, CO
- The Bear Chase100KTrailLakewood, CO
- Long View MarathonMarathonRoadLoveland, CO
- Rocky's Backyard UltraBackyard UltraTrailEstes Park, CO
- Bobcat Trail Races50KTrailColorado Springs, CO
- Blue Sky MarathonMarathonTrailFort Collins, CO
- Rock 'n' Roll Denver Half MarathonHalf MarathonRoadDenver, CO262 ft
- Bridge Burner Ultra35 MilerTrailCanon City, CO
- The Barnyard Backyard UltraBarnyard Backyard UltraTrailErie, CO
- Beware the Bear Trail Races5+15 DoubleTrailLakewood, CO
- Bear Creek Backyard UltraBackyard UltraTrailLakewood, CO
November 2026
- Rim Rock MarathonMarathonRoadFruita, CO
- Kessel Run Ultra50 MileTrailFruita, CO
- Marathon At The MACMarathonTrailCastle Rock, CO
- Sandstone Sixer6hrsTrailLarkspur, CO
- Louisville Trail RaceMarathonTrailLouisville, CO285 ft
- Mountain Peacock 50k50KTrailGolden, CO
- Colorado Cold Rush Ultra50KTrailColorado Springs, CO
- WP Elite Turkey Trot and Ruck10KTrailWoodland Park, CO
December 2026
January 2027
February 2027
March 2027
April 2027
May 2027
- Take 5 in the GardenDouble TakeTrailColorado Springs, CO
- Colorado MarathonMarathonRoadFort Collins, CO
- The PilgrimageUNCREWEDTrailMack, CO
- Adventure Fest at 18 RoadWomen's Gravel ClinicTrailFruita, CO
- Valkyrie Trail Race50KTrailColorado Springs, CO3,586 ft
- Wild Horse Runs5KTrailDe Beque, CO
- Colfax MarathonMarathonRoadDenver, CO
- Samson's Revenge50KTrailEstes Park, CO
June 2027
July 2027
August 2027
September 2027
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By distance and kind
By place
- California 185
- Florida 99
- Texas 77
- North Carolina 74
- Georgia 73
- Pennsylvania 71
- Arizona 68
- Washington 63
- Virginia 57
- Utah 55
- Colorado 53
- Alabama 53
- Tennessee 45
- New York 41
- Illinois 33
- South Carolina 33
- Canada 28
- Wisconsin 27
- Connecticut 26
- Maryland 21
- Minnesota 21
- Oregon 20
- Michigan 19
- Vermont 16