Race Start End City State
Hahns Peak Vertical Trail Race Jul. 5, '26 Jul. 5, '26 Clark CO REGISTER
Blue Sky Ascent & Round Trip (formerly the Mt. Evans Ascent) Jun. 28, '26 Jun. 28, '26 Idaho Springs CO REGISTER
KowTown Gravel Jun. 13, '26 Jun. 13, '26 Kremmling CO REGISTER
Candy Cane Course - Denver Dec. 6, '26 Dec. 6, '26 Westminster CO REGISTER
Howelsen Hill Trail Run Jun. 13, '26 Jun. 13, '26 Steamboat Springs CO REGISTER
The Great CO74 Trail Run May. 9, '26 May. 9, '26 Kittredge CO REGISTER
Hayden Cog Run May. 3, '26 May. 3, '26 Hayden CO REGISTER
The Narrow Gauge Races May. 24, '26 May. 24, '26 Durango CO REGISTER
Wednesday Worlds Cheyenne Mountain State Park Jun. 3, '26 Jun. 3, '26 Colorado Springs CO REGISTER
Audi Snowmass 50 Mountain Bike Race Jul. 25, '26 Jul. 25, '26 Snowmass Village CO REGISTER
Continental Divide Trail Run Aug. 29, '26 Aug. 29, '26 Steamboat Springs CO REGISTER
CG Adventure Club - Elevation Everest Sep. 23, '26 Sep. 27, '26 Winter Park CO REGISTER
Wild West Relay Jul. 31, '26 Aug. 1, '26 Fort Collins CO REGISTER
South Fork Alder Ass Race Sep. 5, '26 Sep. 5, '26 South Fork CO REGISTER
Silverheels Trail Runs Jul. 10, '26 Jul. 11, '26 Como CO REGISTER
Flaming Foliage Relay - Idaho Springs to Buena Vista Sep. 11, '26 Sep. 12, '26 Idaho Springs CO REGISTER
Bob Cook Memorial Blue Sky Hill Climb Jul. 25, '26 Jul. 25, '26 Idaho Springs CO REGISTER
Spring Creek Memorial Trail Run Jul. 18, '26 Jul. 18, '26 Steamboat Springs CO REGISTER
10k at 10,000 Feet Sep. 6, '26 Sep. 6, '26 Steamboat Springs CO REGISTER
Summer Sizzler- Colorado Springs Aug. 9, '26 Aug. 9, '26 Colorado Springs CO REGISTER
2026 CKF Leadville Trail 100 MTB Aug. 15, '26 Aug. 15, '26 Leadville CO REGISTER
Colorado Women's Classic - Westminster May. 10, '26 May. 10, '26 Westminster CO REGISTER
Treat Trot - Denver Jun. 13, '26 Jun. 13, '26 Thornton CO REGISTER
Summits Trail Runs Jun. 6, '26 Jun. 6, '26 Granby CO REGISTER
2026 Lake Nighthorse Triathlon - Sprint and Olympic Sep. 12, '26 Sep. 12, '26 Durango CO REGISTER
Sawmill Trail Runs Dec. 5, '26 Dec. 5, '26 Pine CO REGISTER
RMRR October Trophy Series Oct. 4, '26 Oct. 4, '26 Aurora CO REGISTER
Buffalo Bicycle Classic Sep. 13, '26 Sep. 13, '26 Boulder CO REGISTER
Greenland Trail Races May. 2, '26 May. 2, '26 Larkspur CO REGISTER
Indian Creek Trail Runs Oct. 17, '26 Oct. 17, '26 Sedalia CO REGISTER