Road and trail, worldwide
Races in Colorado
149 racesupcoming
There are 149 upcoming races in Colorado on the calendar, from November 2026 to November 2027. The next is Louisville Trail Race on November 14, 2026. The most climbing is at High Five 100: 40,000 ft (12,192 m). 125 are trail races and 24 are on the road.
November 2026
- Louisville Trail Race5KTrailLouisville, CO
- Louisville Trail Race10KTrailLouisville, CO
- Louisville Trail RaceHalf MarathonTrailLouisville, CO
- Louisville Trail RaceMarathonTrailLouisville, CO285 ft
- Mountain Peacock 50k50KTrailGolden, CO
- Turkey ROCK Trot (Plum Creek Church)5KRoadCastle Rock, CO
- Colorado Cold Rush Ultra50KTrailColorado Springs, CO
- Colorado Cold Rush Ultra10KTrailColorado Springs, CO
- Alpine Bank Boulder Thanksgiving Day 5K5KRoadBoulder, CO
- Broomfield Turkey Day 5K/10K5KRoadBroomfield, CO
- Broomfield Turkey Day 5K/10K10KRoadBroomfield, CO
- Fort Collins Thanksgiving Day Run5KRoadFort Collins, CO
- Grand Junction Fire Fighters Foundation GJ Turkey Trot5KRoadGrand Junction, CO
- WP Elite Turkey Trot and Ruck5KTrailWoodland Park, CO
- WP Elite Turkey Trot and Ruck10KTrailWoodland Park, CO
- YMCA Turkey Trot 5K (presented by Corwin Honda)5KRoadColorado Springs, CO
December 2026
January 2027
February 2027
March 2027
April 2027
- Popeye's Backyard Ultra96 HourTrailLarkspur, CO
- Desert RATS by UTMB100KTrailCO8,953 ft
- Desert RATS by UTMB48KTrailCO3,445 ft
- Desert RATS by UTMB9KTrailCO656 ft
- Desert RATS by UTMB21KTrailCO2,297 ft
- Rattler Trail Race10KTrailColorado Springs, CO
- Rattler Trail Race50KTrailColorado Springs, CO
- Rattler Trail Race25KTrailColorado Springs, CO
- Rattler Trail Race5KTrailColorado Springs, CO
- Cheyenne Mountain Trail Race50KTrailColorado Springs, CO
- Cheyenne Mountain Trail Race25KTrailColorado Springs, CO
- Cheyenne Mountain Trail Race7 MileTrailColorado Springs, CO
- Cheyenne Mountain Trail Race4 MileTrailColorado Springs, CO
May 2027
- Collegiate Peaks Trail Run50 MileTrailBuena Vista, CO
- Collegiate Peaks Trail Run25 MileTrailBuena Vista, CO
- Take 5 in the GardenDouble TakeTrailColorado Springs, CO
- Take 5 in the Garden5 MileTrailColorado Springs, CO
- Take 5 in the Garden5KTrailColorado Springs, CO
- Colorado MarathonMarathonRoadFort Collins, CO207 ft
- The PilgrimageUNCREWEDTrailMack, CO
- Adventure Fest at 18 RoadWomen's Gravel ClinicTrailFruita, CO
- Valkyrie Trail Race50KTrailColorado Springs, CO3,586 ft
- Valkyrie Trail Race30KTrailColorado Springs, CO
- Valkyrie Trail RaceMarathonTrailColorado Springs, CO3,586 ft
- Valkyrie Trail Race8 MileTrailColorado Springs, CO
- Valkyrie Trail Race4 MileTrailColorado Springs, CO
- Colfax 5K (Denver Colfax Marathon weekend, Saturday)5KRoadDenver, CO
- Colorado Rockies Home Run for the Homeless 5K5KRoadDenver, CO
- Wild Horse Runs5KTrailDe Beque, CO
- Colfax MarathonMarathonRoadDenver, CO692 ft
- Denver Colfax Half MarathonHalf MarathonRoadDenver, CO
- Samson's Revenge50KTrailEstes Park, CO
- Samson's Revenge25KTrailEstes Park, CO
- Samson's Revenge10KTrailEstes Park, CO
- BOLDERBoulder 10K10KRoadBoulder, CO
June 2027
July 2027
- Hardrock 100 Endurance Run100 MilerTrailSilverton, CO34,147 ft
- Donor Dash (Denver)5KRoadDenver, CO
- High Lonesome100 MileTrailSalida, CO22,001 ft
- Ouray 100 Mile Endurance Run100 MilerTrailOuray, CO
- Creede 50/100100 MileTrailCreede, CO
- Pikes Peak Ultra50 MilerTrailColorado Springs, CO
- Pikes Peak Ultra50KTrailColorado Springs, CO
- Pikes Peak Ultra30KTrailColorado Springs, CO
- Pikes Peak Ultra20KTrailColorado Springs, CO
- The Summit 200The Summit 200TrailFrisco, CO
- Never Summer100KTrailFort Collins, CO12,999 ft
August 2027
- High Five 100100 MileTrailLake City, CO40,000 ft
- Winter Park 50K10KTrailWinter Park, CO
- Winter Park 50K50KTrailWinter Park, CO
- Winter Park 50KHalf MarathonTrailWinter Park, CO
- Ouray 50 Mile Endurance Run50 MileTrailOuray, CO
- Continental Divide Trail Run50KTrailSteamboat Springs, CO
- Continental Divide Trail Run5 MileTrailSteamboat Springs, CO
- Continental Divide Trail Run16 MileTrailSteamboat Springs, CO
- Leadville Trail100 MileTrailLeadville, CO14,941 ft
- La Garita 200La Garita 200TrailSouth Fork, CO
- Rock Hawk50KTrailCastle Rock, CO
- Telluride Mountain Run24 MileTrailTelluride, CO
- Telluride Mountain Run65 MilerTrailTelluride, CO
September 2027
- Front Range Ultra Dayze50KTrailLoveland, CO
- Front Range Ultra Dayze12-hour night raceTrailLoveland, CO
- Creede Mountain Run50KTrailCreede, CO
- American Heroes RunMarathonTrailLongmont, CO
- Devil on the Divide50KTrailEmpire, CO3,399 ft
- Snow Mountain Ranch50KTrailGranby, CO2,825 ft
- Boulderthon5KRoadBoulder, CO
- Boulderthon10KRoadBoulder, CO
- Break of Dawn North Table Trail Race10 MileTrailGolden, CO
- Mayor's Cup 5k/10k10KTrailWoodland Park, CO
- Ouray Mountain Trail Run13 MileTrailOuray, CO
- Pikes Peak MarathonMarathonTrailManitou Springs, CO
- 24 Hours of Palmer Lake24 HourTrailPalmer Lake, CO
- Crested Butte Ultra50 MileTrailCrested Butte, CO
- Crested Butte Ultra35KTrailCrested Butte, CO
- Crested Butte Ultra55KTrailCrested Butte, CO
- Deep Creek Trail Half MarathonMarathonTrailTelluride, CO
- Estes Epic50KTrailEstes Park, CO
- Estes EpicThe EpicTrailEstes Park, CO
- Estes EpicHalf MarathonTrailEstes Park, CO
- WILD Wahatoya Runs8 MileTrailLa Veta, CO
- WILD Wahatoya Runs50KTrailLa Veta, CO
October 2027
- Above the Clouds Ultra50KTrailWoodland Park, CO
- Above the Clouds Ultra10KTrailWoodland Park, CO
- Colorado Springs MarathonMarathonRoadColorado Springs, CO804 ft
- Grand Valley BackyardBYU/LPSTrailLoma, CO499 ft
- The Bear Chase5KTrailLakewood, CO
- The Bear Chase10KTrailLakewood, CO
- The Bear ChaseHalf MarathonTrailLakewood, CO
- The Bear Chase50 MileTrailLakewood, CO
- The Bear Chase50KTrailLakewood, CO
- The Bear Chase100KTrailLakewood, CO
- SKECHERS Hot Chocolate Run - Denver10KRoadDenver, CO
- SKECHERS Hot Chocolate Run - Denver5KRoadDenver, CO
- Long View MarathonMarathonRoadLoveland, CO627 ft
- Rocky's Backyard UltraBYU/LPSTrailEstes Park, CO
- Sage Burner Trail Race15KTrailGunnison, CO
- Sage Burner Trail Race28KTrailGunnison, CO
- Sage Burner Trail Race50KTrailGunnison, CO
- Bobcat Trail Races10KTrailColorado Springs, CO
- Bobcat Trail Races50KTrailColorado Springs, CO
- Bobcat Trail Races25KTrailColorado Springs, CO
- Bobcat Trail Races5KTrailColorado Springs, CO
- Blue Sky MarathonMarathonTrailFort Collins, CO3,491 ft
- Rock 'n' Roll Denver Half MarathonHalf MarathonRoadDenver, CO262 ft
- Bridge Burner Ultra35KTrailCanon City, CO
- Bridge Burner Ultra35 MilerTrailCanon City, CO
- Bridge Burner Ultra50KTrailCanon City, CO
- Bridge Burner Ultra10KTrailCanon City, CO
- The Barnyard Backyard UltraBYU/LPSTrailErie, CO
- Bear Creek Backyard UltraBYU/LPSTrailLakewood, CO
- Beware the Bear Trail Races5KTrailLakewood, CO
- Beware the Bear Trail Races15KTrailLakewood, CO
- Beware the Bear Trail Races5+15 DoubleTrailLakewood, CO
November 2027
- Kessel Run Ultra50 MileTrailFruita, CO
- Kessel Run Ultra10 MileTrailFruita, CO
- Kessel Run Ultra20 MileTrailFruita, CO
- Kessel Run Ultra50KTrailFruita, CO
- Kessel Run Ultra40 MileTrailFruita, CO
- Marathon At The MAC5KTrailCastle Rock, CO
- Marathon At The MACMarathonTrailCastle Rock, CO
- Sandstone Sixer6hrsTrailLarkspur, CO
- Rim Rock MarathonMarathonRoadFruita, CO
Browse races
By distance and kind
- 100-mile races 282
- 50-mile and 100K races 538
- 50K races 612
- Marathons 1,022
- 5Ks, 10Ks and half marathons 1,671
- 200-mile and longer races 57
- Timed and backyard races 538
- Trail races 3,792
- Road races 1,129
- Western States qualifiers 231
- Golden Ticket races 6
- UTMB World Series races 171
- UTMB Direct qualifiers 122
- Hardrock qualifiers 20
- Badwater qualifiers 17
- World Marathon Majors 8
By place
- California 600
- Texas 264
- Florida 241
- Arizona 177
- Georgia 174
- Washington 172
- Pennsylvania 168
- Utah 167
- North Carolina 151
- Colorado 149
- Virginia 137
- Illinois 132
- Alabama 127
- New York 121
- Tennessee 120
- Oregon 105
- Canada 104
- France 93
- Ohio 92
- Michigan 80
- Missouri 78
- Wisconsin 75
- South Carolina 70
- Kansas 66