All races in Colorado
Upcoming trail races in Colorado
116 trail races are coming up in Colorado, out of 387 races on the statewide calendar. Compare dates, distances and locations, then get ready with a personalized training plan.
116 upcoming races
November 2026
- Nov 7, 2026 HRCA Backcountry Wilderness Half Marathon📍 Lone Tree, CO13.1 mi
- Nov 14, 2026 Louisville Trail Race📍 Louisville, CO3.1 mi · 6.2 mi · 13.1 mi
- Nov 14, 2026 Lone Tree Reckoning Half and 5K📍 Loveland, CO13 mi
December 2026
- Dec 5, 2026 Sawmill Trail Runs📍 Pine, CO16.1 mi · 8.1 mi
- Dec 13, 2026 Waverly Winter Warrior📍 Louisville, CO6.6 mi · 13.1 mi
February 2027
- Feb 5, 2027 estimated dateRunning Up for Air - Staunton Rocks📍 Pine, CO18 mi · 6 h · 12 h · 24 h
- Feb 20, 2027 estimated dateStories Trail Runs📍 Colorado Springs, CO6.7 mi · 13.6 mi · 6 h · 15 h
April 2027
- Apr 9, 2027 Desert R.A.T.S. Trail Running Festival📍 Fruita, CO62.1 mi · 29.8 mi · 13.1 mi · 5.6 mi
- Apr 9, 2027 estimated dateRun the Ranch - Loveland📍 Loveland, CO3.1 mi · 6.2 mi · 4 h · 6 h
- Apr 10, 2027 Trail Running Festival Desert Rats by UTMB®📍 Fruita, CO62.1 mi · 31.1 mi · 13 mi · 6.2 mi
- Apr 10, 2027 estimated dateBoulder Rez Half Marathon📍 Boulder, CO3.1 mi · 6.2 mi · 13.1 mi · 13.1 mi
- Apr 17, 2027 Rattler Trail Race📍 Colorado Springs, CO31.1 mi · 15.5 mi · 6.2 mi · 3.1 mi
May 2027
- May 1, 2027 Greenland Trail Races📍 Palmer Lake, CO4 mi · 8 mi · 15.5 mi · 31.1 mi
- May 1, 2027 Nielson Challenge July📍 Colorado Springs, CO2 mi
- May 8, 2027 estimated dateQuad Rock 50📍 Bellvue, CO25 mi · 50 mi
- May 8, 2027 estimated dateQuad Rock📍 Fort Collins, CO50 mi · 25 mi
- May 9, 2027 estimated dateFruita Trail Half📍 Fruita, CO13.1 mi
- May 15, 2027 estimated dateEndure Trail Runs📍 Divide, CO6.8 mi · 14.1 mi · 26.5 mi · 12 h
- May 15, 2027 estimated dateTommyknocker 12-Hour & The Mine Shaft Half📍 Divide, CO26.5 mi · 6.8 mi · 12 h
- May 29, 2027 North Fork 50K Trail Race📍 Pine Grove, CO31.1 mi · 50 mi
June 2027
- Jun 2, 2027 Turquoise Lake Road & Trail Run📍 Leadville, CO12.4 mi
- Jun 3, 2027 Vail Ultra Benefiting For The Fallen📍 Vail, CO50 mi
- Jun 5, 2027 estimated dateSummits Trail Runs📍 Granby, CO6 mi · 21.3 mi · 27.4 mi · 43 mi
- Jun 13, 2027 estimated dateGarden of the Gods 10 Mile / 10K Run - CO📍 Colorado Springs, CO10 mi · 6.2 mi
- Jun 15, 2027 Frisco Mountain Goat Kids Trail Running Series📍 Frisco, CO3.1 mi · 804.67 m · 1.5 mi · 1.6 mi
- Jun 20, 2027 estimated dateSunset Trail Running Festival📍 Boulder, CO0.6 mi · 3.1 mi · 7.5 mi · 17.4 mi
- Jun 26, 2027 estimated dateSBT TRL📍 Steamboat Springs, CO3.1 mi · 6.2 mi
- Jun 26, 2027 estimated dateTimberview Trail Run📍 Bellvue, CO3.1 mi · 5 mi · 10 mi
July 2027
- Jul 2, 2027 The Rundola📍 Telluride, CO0.9 mi
- Jul 3, 2027 Hahn’s Peak Hill Climb📍 Steamboat Springs, CO8 mi
- Jul 3, 2027 Vail HillClimb Trail Run📍 Vail, CO6.8 mi
- Jul 4, 2027 estimated dateHahns Peak Vertical Trail Race📍 Clark, CO8 mi
- Jul 4, 2027 estimated dateHahns Peak Vertical Trail Race -Clark, CO📍 Clark, CO8 mi
- Jul 9, 2027 Chase the Moon📍 Highlands Ranch, CO31.1 mi · 3 h · 6 h · 12 h
- Jul 9, 2027 estimated dateHardrock 100 Endurance Run📍 Silverton, CO100 mi
- Jul 9, 2027 Hardrock Hundred Mile Endurance Run📍 Silverton, CO100 mi
- Jul 9, 2027 estimated dateSilverheels 100📍 Como, CO100 mi · 63.4 mi · 50 mi · 37.9 mi
- Jul 10, 2027 estimated dateGrin & Bear It📍 Crested Butte, CO9.3 mi · 15.5 mi
- Jul 10, 2027 estimated dateLeadville Silver Rush 50📍 Leadville, CO15 mi · 50 mi
- Jul 10, 2027 Leadville Silver Rush Trail Run📍 Leadville, CO50 mi · 14.9 mi
- Jul 10, 2027 estimated dateSilver Rush 50 Run📍 Leadville, CO48.4 mi
- Jul 11, 2027 Evergreen Mountain Trail Race📍 Evergreen, CO9.3 mi
- Jul 11, 2027 Crag Crest Trail Run📍 Grand Junction, CO10.6 mi
- Jul 13, 2027 Frisco Mountain Goat Kids Trail Running Series #3📍 Frisco, CO1.6 mi · 3.1 mi · 800 m
- Jul 14, 2027 Tom’s Baby Turnaround Summit Trail Running Series Race #4📍 Breckenridge, CO3.7 mi · 7.5 mi
- Jul 16, 2027 Ouray 100 Mile Endurance Run📍 Ouray, CO100 mi · 50 mi
- Jul 16, 2027 High Lonesome 100 Mile📍 Mount Lincoln, CO100 mi
- Jul 17, 2027 Audi Power of Four Trail Run📍 Aspen, CO6.2 mi · 15 mi · 31 mi
- Jul 17, 2027 Spring Creek Memorial Trail Run📍 Steamboat Springs, CO3.1 mi
- Jul 17, 2027 10K and 5K at 10,000 Feet📍 Vail, CO6.2 mi · 3.1 mi
- Jul 17, 2027 Powderhorn Mountain Ultra, Vertical Challenge and relay📍 Mesa, CO360 m · 720 m · 6.2 mi
- Jul 17, 2027 estimated dateSilverton Alpine 📍 Silverton, CO31.7 mi · 26.7 mi · 8 mi
- Jul 18, 2027 Barr Trail Mountain Race📍 Manitou Springs, CO12.6 mi
- Jul 18, 2027 Kendall Mountain Run📍 Silverton, CO6.8 mi · 12 mi
- Jul 18, 2027 Victor Gold Rush Days Pack Burro Race📍 Victor, CO6.8 mi
- Jul 18, 2027 Elevate Mountain Running Camp📍 Steamboat Springs, CO4.5 mi
- Jul 23, 2027 Blue Moon Trail📍 Colorado Springs, CO3.1 mi · 6.2 mi
- Jul 23, 2027 Never Summer Dirty Double📍 Gould, CO37.3 mi · 62.1 mi
- Jul 23, 2027 estimated dateNever Summer 100k & 60k📍 Gould, CO62.1 mi · 37.3 mi
- Jul 24, 2027 estimated dateGrand Mesa Ultras📍 Grand Mesa, CO18.6 mi · 34.2 mi · 50 mi
- Jul 26, 2027 The Summit 200📍 Frisco, CO200 mi
- Jul 26, 2027 TransRockies Run📍 Buena Vista, CO
- Jul 30, 2027 Never Summer 100km & 60km📍 Walden, CO37.3 mi · 62.1 mi
- Jul 30, 2027 Middle Creek Flyathlon📍 Saguache, CO13 mi · 7 mi
- Jul 31, 2027 Berry Picker Trail Run📍 Vail, CO4.6 mi
- Jul 31, 2027 estimated dateSheep Mountain📍 Fairplay, CO50 mi · 31.6 mi
August 2027
- Aug 1, 2027 Emerald Mountain Epic📍 Steamboat Springs, CO13.1 mi · 26.2 mi
- Aug 1, 2027 Two Brothers Up-and-Down📍 Idaho Springs, CO6.2 mi · 3.1 mi
- Aug 2, 2027 estimated dateSilverton Ultra Dirty📍 Silverton, CO100 mi · 59.5 mi · 36.6 mi
- Aug 3, 2027 estimated dateEltuck Valley 5k📍 Fort Collins, CO3.1 mi
- Aug 6, 2027 High Five 100📍 Lake City, CO100 mi
- Aug 7, 2027 Kennebec Mountain Run📍 Hesperus, CO15 mi
- Aug 7, 2027 estimated dateSHEEP MOUNTAIN TRAIL RUNS📍 Fairplay, CO50 mi · 31.1 mi · 13.1 mi
- Aug 10, 2027 estimated dateInto the Hills Eltuck 10k📍 Fort Collins, CO6.2 mi
- Aug 13, 2027 San Juan Softie 100📍 Durango, CO100 mi
- Aug 13, 2027 Pikes Peak Marathon & Ascent Training Camp📍 Manitou Springs, CO26.1 mi
- Aug 15, 2027 estimated dateThe Cheyenne Mountain Run📍 Colorado Springs, CO3.1 mi · 6.2 mi · 14 mi
- Aug 17, 2027 estimated dateInto the Hills Eltuck 5k - Bellvue📍 Fort Collins, CO3.1 mi
- Aug 21, 2027 estimated dateCKF Leadville Trail 100 Run📍 Aspen, CO100 mi
- Aug 21, 2027 estimated dateLeadville Trail 100 Mile Run📍 Leadville, CO100 mi
- Aug 21, 2027 estimated dateStaunton Rocks! Marathon & Half📍 Pine, CO13.1 mi · 26.2 mi
- Aug 21, 2027 Leadville Trail 100 Run📍 Leadville, CO100 mi
- Aug 24, 2027 estimated dateEltuck Valley 12K - Lory Summer Trail Series📍 Fort Collins, CO7.5 mi
- Aug 28, 2027 estimated dateContinental Divide Trail Run📍 Steamboat Springs, CO5 mi · 16 mi · 31.1 mi
- Aug 28, 2027 estimated dateRexRun For PAWSitivity📍 Aurora, CO1 mi · 3.1 mi
September 2027
- Sep 4, 2027 estimated dateDiscrete Cirque Series - Arapahoe Basin, CO📍 Keystone, CO9.4 mi
- Sep 4, 2027 estimated dateGrand Traverse Trail Run📍 Crested Butte, CO40 mi
- Sep 11, 2027 estimated dateBlack Squirrel Half📍 Bellvue, CO13.3 mi
- Sep 11, 2027 estimated dateDevil on the Divide📍 Empire, CO13.7 mi · 31.1 mi
- Sep 11, 2027 estimated dateImogene Pass Run📍 Telluride, CO17.1 mi
- Sep 11, 2027 estimated dateSnow Mountain Ranch Trail Run📍 Granby, CO3.1 mi · 6.2 mi · 13.1 mi · 20.5 mi
- Sep 11, 2027 estimated dateTrail Sisters Women's Half Marathon📍 Buena Vista, CO6.2 mi · 13.1 mi
- Sep 17, 2027 Run Rabbit Run 100📍 Steamboat Springs, CO50 mi · 100 mi
- Sep 18, 2027 estimated dateOuray Mountain Trail Run📍 Ouray, CO13 mi
- Sep 24, 2027 estimated dateRed Feather Trail Jamboree📍 Red Feather Lakes, CO13.1 mi · 50 mi
- Sep 25, 2027 estimated dateCrested Butte Ultra📍 Crested Butte, CO21.7 mi · 34.2 mi · 50 mi
- Sep 25, 2027 estimated dateDeep Creek Trail 1/2 Marathon📍 Telluride, CO13.1 mi
- Sep 25, 2027 estimated dateGolden Leaf Half Marathon📍 Aspen, CO13.1 mi
- Sep 25, 2027 estimated dateSangre de Cristo Trail Festival📍 Westcliffe, CO8 mi · 16.8 mi · 31.1 mi · 50 mi
- Sep 25, 2027 estimated dateWest Line Winder - 50K & 30K📍 Buena Vista, CO18.6 mi · 31.1 mi
- Sep 25, 2027 estimated dateWILD Wahatoya Runs📍 La Veta, CO8 mi · 13.1 mi · 31.1 mi
- Sep 25, 2027 estimated dateMountain Marmot📍 Durango, CO12 mi
- Sep 25, 2027 estimated dateOutlast Colorado Springs📍 Colorado Springs, CO18 mi
- Sep 25, 2027 estimated dateSangre de Cristo Ultras📍 Westcliffe, CO100 mi · 61 mi · 50 mi · 30.8 mi
- Sep 26, 2027 estimated dateGreenland Open Space Pack Burro Races📍 Palmer Lake, CO8 mi · 3 mi
October 2027
- Oct 2, 2027 estimated dateEmerald Mountain Trail Run📍 Steamboat Springs, CO4 mi · 8 mi
- Oct 2, 2027 estimated dateSage Burner Trail Races📍 Gunnison, CO9.3 mi · 17.4 mi · 31.1 mi
- Oct 2, 2027 estimated dateThe Bear Chase Race📍 Lakewood, CO3.1 mi · 6.2 mi · 13.1 mi · 31.1 mi
- Oct 2, 2027 estimated dateAbove the Clouds Ultra📍 Woodland Park, CO6.2 mi · 31.1 mi
- Oct 2, 2027 estimated dateOutlast Denver📍 Littleton, CO6 h
- Oct 3, 2027 estimated dateRubey Rescue Run📍 Aspen, CO3.1 mi
- Oct 16, 2027 estimated dateBlue Sky Trail Marathon & Half Marathon📍 Fort Collins, CO13.8 mi · 26.7 mi
- Oct 16, 2027 estimated dateIndian Creek Trail Runs📍 Sedaila, CO5.5 mi · 15 mi · 35 mi · 54 mi
- Oct 18, 2027 estimated dateBlue Sky Trail Marathon📍 Fort Collins, CO26.8 mi · 13.5 mi
- Oct 23, 2027 estimated dateBridge Burner Ultra📍 Cañon City, CO6.2 mi · 21.7 mi · 31.1 mi · 35 mi
- Oct 23, 2027 estimated dateMcGraw Memorial Park "Quick Draw @ McGraw" 2 Mile Trail Race📍 Bailey, CO2 mi
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