July 2026 Colorado Ultra Races
4 upcoming Ultra races in Colorado in July.
Silverheels Trail Runs
441-463 Boreas Pass Rd, Como, CO
100K · Ultra · Other
Avg 71° / 42°·9,377 ft city elevation Avg 71° / 42°9,377 ft city elevation High Lonesome 100
Co Rd 321, Nathrop, CO
100 Mile
Avg 84° / 50°·8,048 ft city elevation Avg 84° / 50°8,048 ft city elevation Never Summer 100km & 60km
58998 CO-14, Walden, CO
100K · 100 Mile · Ultra
Avg 77° / 39°·8,069 ft city elevation Avg 77° / 39°8,069 ft city elevation World Championship Pack Burro Race
531 Front Street, Fairplay, CO
50K
Avg 71° / 43°·9,941 ft city elevation Avg 71° / 43°9,941 ft city elevation August 2026 Colorado Ultra Races
1 upcoming Ultra race in Colorado in August.
Sheep Mountain Trail Runs
Platte Drive, Fairplay, CO
Ultra · Other
Avg 71° / 43°·9,941 ft city elevation Avg 71° / 43°9,941 ft city elevation September 2026 Colorado Ultra Races
4 upcoming Ultra races in Colorado in September.
Red Feather Trail Jamboree
2331 County Rd 68C, Red Feather Lakes, CO
Half Marathon · 50K · 50 Mile · Ultra
Avg 65° / 35°·9,241 ft city elevation Avg 65° / 35°9,241 ft city elevation West Line Winder
402 E Main St, Buena Vista, CO
50K
Avg 71° / 36°·8,017 ft city elevation Avg 71° / 36°8,017 ft city elevation Sangre de Cristo Trail Festival
Grape Creek Trailhead (Almost), Westcliffe, CO
8 Mile · 50K · 50 Mile · 100K · Ultra · Other
Avg 69° / 33°·8,080 ft city elevation Avg 69° / 33°8,080 ft city elevation Sawatch Ascent
Co Rd 321, Nathrop, CO
50K
Avg 70° / 36°·8,048 ft city elevation Avg 70° / 36°8,048 ft city elevation October 2026 Colorado Ultra Races
2 upcoming Ultra races in Colorado in October.
Suffer Better 10th Annual Fall Trail Runs
Staunton State Park, Pine, CO
50K · Other
Avg 61° / 26°·8,109 ft city elevation Avg 61° / 26°8,109 ft city elevation Indian Creek Trail Runs
2499 Pine Creek Rd, Sedalia, CO
Ultra · Other
Avg 64° / 35°·8,061 ft city elevation Avg 64° / 35°8,061 ft city elevation December 2026 Colorado Ultra Races
1 upcoming Ultra race in Colorado in December.
Sawmill Trail Runs
12102 S Elk Creek Rd, Pine, CO
8 Mile · 50K · Other
Avg 38° / 10°·8,109 ft city elevation Avg 38° / 10°8,109 ft city elevation February 2027 Colorado Ultra Races
1 upcoming Ultra race in Colorado in February.
Stories Trail Runs
410 JL Ranch Heights Rd, Colorado Springs, CO
Half Marathon · Other
Avg 45° / 19°·6,118 ft city elevation Avg 45° / 19°6,118 ft city elevation April 2027 Colorado Ultra Races
1 upcoming Ultra race in Colorado in April.
NoCo Urban Ultra & Relay
4936 W County Rd 52 E, Bellvue, CO
50 Mile · 100 Mile
Avg 51° / 29°·6,647 ft city elevation Avg 51° / 29°6,647 ft city elevation May 2027 Colorado Ultra Races
2 upcoming Ultra races in Colorado in May.
Greenland Trail Races
1532 E Noe Rd, Larkspur, CO
4 Mile · 8 Mile · 50K · Other
Avg 61° / 34°·6,846 ft city elevation Avg 61° / 34°6,846 ft city elevation Endure Trail Runs
Mueller State Park - Pisgah Point Group Camping Area, Divide, CO
Marathon · Other
Avg 56° / 31°·9,061 ft city elevation Avg 56° / 31°9,061 ft city elevation June 2027 Colorado Ultra Races
2 upcoming Ultra races in Colorado in June.
Weld Your Mettle Running Festival
11586 Co Rd 80, Eaton, CO
4 Mile · Marathon · 50K · 50 Mile · 100K · Ultra · Other
Avg 82° / 51°·4,831 ft city elevation Avg 82° / 51°4,831 ft city elevation Summits Trail Runs
1000 Village Rd, Granby, CO
10K · Ultra · Other
Avg 68° / 36°·7,960 ft city elevation Avg 68° / 36°7,960 ft city elevation