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Upcoming running races in Colorado
34 running races are coming up in Colorado. Compare dates, distances and locations, then get ready with a personalized training plan.
34 upcoming races
September 2026
- Sep 5, 2026Creede Mountain Run📍 Creede, CO2 mi · 12 mi · 22 mi · 31 mi
- Sep 5, 2026Discrete Cirque Series - Arapahoe Basin, CO📍 Keystone, CO9.4 mi
- Sep 5, 2026Grand Traverse Trail Run📍 Crested Butte, CO40 mi
- Sep 6, 2026Golden Harvest Half Marathon & 5k/10k - Colorado Springs📍 Colorado Springs, CO50 m · 1 mi · 3.1 mi · 6.2 mi
- Sep 12, 2026Black Squirrel Half📍 Bellvue, CO13 mi
- Sep 12, 2026Devil on the Divide📍 Empire, CO14 mi · 31 mi
- Sep 12, 2026Imogene Pass Run📍 Telluride, CO17 mi
- Sep 12, 2026Snow Mountain Ranch Trail Run📍 Granby, CO3.1 mi · 6.2 mi · 13 mi · 21 mi
- Sep 12, 2026Trail Sisters Women's Half Marathon📍 Buena Vista, CO6.2 mi · 13 mi
- Sep 15, 2026Leadville Trail 100 Run📍 Leadville, CO100 mi
- Sep 18, 2026Run Rabbit Run 50 & 100 Mile UltraMarathons📍 Steamboat Springs, CO50 mi · 100 mi
- Sep 19, 2026Ouray Mountain Trail Run📍 Ouray, CO13 mi
- Sep 25, 2026Red Feather Trail Jamboree📍 Red Feather Lakes, CO13 mi · 50 mi
- Sep 26, 2026Sangre de Cristo Ultras📍 Westcliffe, CO100 mi · 61 mi · 50 mi · 31 mi
- Sep 26, 2026Crested Butte Ultra📍 Crested Butte, CO22 mi · 34 mi · 50 mi
- Sep 26, 2026Deep Creek Trail 1/2 Marathon📍 Telluride, CO13 mi
- Sep 26, 2026Golden Leaf Half Marathon📍 Aspen, CO13 mi
- Sep 26, 2026Night Nation Run - Denver,CO📍 Commerce City, CO3.1 mi
- Sep 26, 2026Sangre de Cristo Trail Festival📍 Westcliffe, CO8 mi · 17 mi · 31 mi · 50 mi
- Sep 26, 2026West Line Winder - 50K & 30K📍 Buena Vista, CO19 mi · 31 mi
- Sep 26, 2026WILD Wahatoya Runs📍 La Veta, CO8 mi · 13 mi · 31 mi
- Sep 27, 2026Sawatch Ascent -50k📍 Nathrop, CO31 mi
October 2026
- Oct 3, 2026Emerald Mountain Trail Run📍 Steamboat Springs, CO4 mi · 8 mi
- Oct 3, 2026Sage Burner Trail Races📍 Gunnison, CO9.3 mi · 17 mi · 31 mi
- Oct 3, 2026The Bear Chase Race📍 Lakewood, CO3.1 mi · 6.2 mi · 13 mi · 31 mi
- Oct 3, 2026Above the Clouds Ultra📍 Woodland Park, CO6.2 mi · 31 mi
- Oct 4, 2026Rubey Rescue Run📍 Aspen, CO3.1 mi
- Oct 17, 2026Blue Sky Trail Marathon & Half Marathon📍 Fort Collins, CO14 mi · 27 mi
- Oct 17, 2026Indian Creek Trail Runs📍 Sedaila, CO5.5 mi · 15 mi · 35 mi · 54 mi
- Oct 17, 2026The Great Trailhead Foot Race 10 Miler and 5k📍 Lakewood, CO5 mi · 10 mi
- Oct 19, 2026Blue Sky Trail Marathon📍 Fort Collins, CO27 mi · 13 mi
- Oct 24, 2026Bridge Burner Ultra📍 Cañon City, CO6.2 mi · 22 mi · 31 mi · 35 mi
November 2026
- Nov 14, 2026Louisville Trail Race📍 Louisville, CO3.1 mi · 6.2 mi · 13 mi
April 2027
- Apr 24, 2027All-Out Beat the Heat 1M, 5K, 10K, Half Marathon & Marathon📍 Westminster, CO3.1 mi · 6.2 mi · 13 mi
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