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Ultra Marathons Near Colorado
Showing the next 50 runs that match your filters
Featured
Ruidoso Runfest
Get 15% Off - Use Code RG15
Date: Sep 18-19, 2026 - Friday to Saturday
Size: 500 - 1,000 participants
Location: Ruidoso, New Mexico
Featured
Run the Rocks
Get $10 Off - Use Code RUNGUIDES2026
Date: Oct 11, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Golden, Colorado
Never Summer 100K & 60K
Date: Jul 24-26, 2026 - Friday to Sunday
Size: 100 - 500 participants
Location: Walden, Colorado
Pikes Peak Ultra
Date: Jul 25, 2026 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Sheep Mountain Ultras
Date: Aug 1, 2026 - Saturday
Size: 100 - 500 participants
Location: Fairplay, Colorado
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Aspen Backcountry
Date: Aug 1, 2026 - Saturday
Size: 100 - 500 participants
Location: Aspen, Colorado
Telluride Mountain Run
Date: Aug 21-22, 2026 - Friday to Saturday
Size: 1 - 100 participants
Location: Telluride, Colorado
Leadville Trail 100 Run
Date: Aug 22, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Leadville, Colorado
Continental Divide Trail Run
Date: Aug 23, 2026 - Sunday
Size: 100 - 500 participants
Location: Steamboat Springs, Colorado
Rock Hawk Trail Races
Date: Aug 29, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Castle Rock, Colorado
Devil on the Divide
Date: Sep 12, 2026 - Saturday
Size: 100 - 500 participants
Location: Idaho Springs, Colorado
Snow Mountain Ranch Trail Running Festival
Date: Sep 12, 2026 - Saturday
Size: 100 - 500 participants
Location: Grand Lake, Colorado
Run Rabbit Run
Date: Sep 18-19, 2026 - Friday to Saturday
Size: 100 - 500 participants
Location: Steamboat Springs, Colorado
Red Feather Trail Jamboree
Date: Sep 25-27, 2026 - Friday to Sunday
Size: 100 - 500 participants
Location: Goodell Corner, Colorado
Crested Butte Ultra
Date: Sep 26, 2026 - Saturday
Size: 100 - 500 participants
Location: Crested Butte, Colorado
24 Hours of Palmer Lake
Date: Sep 26, 2026 - Saturday
Size: 100 - 500 participants
Location: Palmer Lake, Colorado
Sangre de Cristo Ultras
Date: Sep 26-27, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Westcliffe, Colorado
Wild Wahatoya Runs
Get 10% Off - Use Code RUNGUIDE10
Date: Sep 26, 2026 - Saturday
Size: 100 - 500 participants
Location: La Veta, Colorado
Estes Epic Ultra Run & MTB Race
Date: Sep 26-27, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Estes Park, Colorado
Race The Ranch Snowshoe Ultra
Date: Sep 27, 2026 - Sunday
Size: 1 - 100 participants
Location: Granby, Colorado
Mainly Marathons Center of the Nation Series - Day 1
Date: Sep 28, 2026 - Monday
Size: 1 - 100 participants
Location: Cheyenne, Wyoming
Sage Burner Trail Races
Date: Oct 3, 2026 - Saturday
Size: 100 - 500 participants
Location: Gunnison, Colorado
The Bear Chase Trail Races
Date: Oct 3-4, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Lakewood, Colorado
Rocky's Backyard Ultra Race
Date: Oct 10, 2026 - Saturday
Size: 1 - 100 participants
Location: Estes Park, Colorado
Indian Creek Trail Runs
Date: Oct 17, 2026 - Saturday
Size: 100 - 500 participants
Location: Pine Nook, Colorado
Bobcat Trail Race
Date: Oct 17, 2026 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Bridge Burner Ultra
Date: Oct 24, 2026 - Saturday
Size: 100 - 500 participants
Location: Duncan, Colorado
Colorado 24 Hour Run
Date: Oct 31-Nov 1, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Fort Collins, Colorado
Colorado Cold Rush
Date: Nov 21, 2026 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Stories Ultra
Date: Feb 6-7, 2027 - Saturday to Sunday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
NoCo Urban Ultra & Relay
Date: Apr 11, 2027 - Sunday
Size: 1 - 100 participants
Location: Greeley, Colorado
Rattler Trail Race
Date: Apr 17, 2027 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Royal Gorge Groove
Date: Apr, 2027 (TBD)
Size: 100 - 500 participants
Location: Cañon City, Colorado
Greenland Trail Races
Date: May 1, 2027 - Saturday
Size: 500 - 1,000 participants
Location: Palmer Lake, Colorado
Collegiate Peaks Trail Run
Date: May, 2027 (TBD)
Size: 100 - 500 participants
Location: Buena Vista, Colorado
Valkyrie Trail Race
Date: May 8, 2027 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Quad Rock 50
Date: May, 2027 (TBD)
Size: 100 - 500 participants
Location: Bellvue, Colorado
Ram Party Trail Runs
Date: May, 2027 (TBD)
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Samson's Revenge Trail Race
Date: May, 2027 (TBD)
Size: 100 - 500 participants
Location: Estes Park, Colorado
Colorado Springs Spartan Weekend
Date: May 29-30, 2027 - Saturday to Sunday
Size: 500 - 1,000 participants
Location: Colorado Springs, Colorado
North Fork Trail Race
Date: May, 2027 (TBD)
Size: 100 - 500 participants
Location: Pine, Colorado
Ragnar Trail Colorado
Date: Jun, 2027 (TBD)
Size: 1,000 - 5,000 participants
Location: Snowmass Village, Colorado
Weld Your Mettle Running Festival
Date: Jun 5-6, 2027 - Saturday to Sunday
Size: 100 - 500 participants
Location: Eaton, Colorado
Great Divide Ultra
Date: Jun, 2027 (TBD)
Size: 100 - 500 participants
Location: Teller County, Colorado
Barr Lake Trail Race
Date: Jun, 2027 (TBD)
Size: 100 - 500 participants
Location: Commerce City, Colorado
Ring the Springs
Date: Jun, 2027 (TBD)
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Chase the Moon 12 Hour Endurance Run
Date: Jun, 2027 (TBD)
Size: 500 - 1,000 participants
Location: Highlands Ranch, Colorado
Estes Park's Backyard Ultra Race
Date: Jun, 2027 (TBD)
Size: 1 - 100 participants
Location: Estes Park, Colorado
Hardrock 100 Endurance Run
Date: Jul 9, 2027 - Friday
Size: 100 - 500 participants
Location: Silverton, Colorado
The Silverheels Trail Runs
Date: Jul 9-10, 2027 - Friday to Saturday
Size: 100 - 500 participants
Location: Como, Colorado
Silver Rush 50
Date: Jul, 2027 (TBD)
Size: 500 - 1,000 participants
Location: Leadville, Colorado
Ouray 100 and 50 Mile Endurance Run
Date: Jul, 2027 (TBD)
Size: 1 - 100 participants
Location: Ouray, Colorado
