Intermediate ultra marathons in Colorado, United States
31 races
Mace's Hideout 100
Jun 7, 2025 (Sat)
Beulah, Colorado, United States
2.2 - 2.9
$482.75
The Great Divide Ultra
Jun 7-8, 2025 (Sat-Sun)
Divide, Colorado, United States
1.3 - 2.9
$163.25 - $333.65
Summits Trail Runs
Jun 14, 2025 (Sat)
Granby, Colorado, United States
1.7
$160
Ring the Springs
Jun 21, 2025 (Sat)
Colorado Springs, Colorado, United States
1.3 - 2.2
$179.22 - $317.67
San Juan Solstice
Jun 21, 2025 (Sat)
Lake City, Colorado, United States
1.8
$269.75
The John Cappis
Jun 28, 2025 (Sat)
Silverton, Colorado, United States
2.2
$0
Silverheels Trail Runs
Jul 11-12, 2025 (Fri-Sat)
Fairplay, Colorado, United States
1.7 - 2.7
$180
Silver Rush 50
Jul 12-13, 2025 (Sat-Sun)
Leadville, Colorado, United States
1.6
Never Summer 100K & 60K
Jul 25-26, 2025 (Fri-Sat)
Gould, Colorado, United States
1.6 - 2.1
Pikes Peak Ultra
Jul 26, 2025 (Sat)
Colorado Springs, Colorado, United States
1.4 - 1.8
$205.85 - $243.12
Grand Mesa Ultras
Jul 26, 2025 (Sat)
Grand Mesa, Colorado, United States
1.4 - 1.8
$141.95 - $163.25
Sheep Mountain Trail Runs
Aug 2, 2025 (Sat)
Fairplay, Colorado, United States
1.4 - 1.9
Leadville Trail 100
Aug 16-17, 2025 (Sat-Sun)
Leadville, Colorado, United States
2.4
NoCo Urban Ultra & Relay
Aug 22-23, 2025 (Fri-Sat)
Fort Collins, Colorado, United States
1.7 - 2.5
Telluride Mountain Run
Aug 23, 2025 (Sat)
Telluride, Colorado, United States
1.8
$211.17
The Grand Traverse
Aug 30, 2025 (Sat)
Crested Butte, Colorado, United States
1.5
$220
Run Rabbit Run
Sep 12-13, 2025 (Fri-Sat)
Steamboat Springs, Colorado, United States
1.7 - 2.5
$386.9 - $615.87
Ouray 50 Mile Endurance Run
Sep 13, 2025 (Sat)
Ouray, Colorado, United States
2.3
$296.37
Red Feather Trail Jamboree
Sep 26-28, 2025 (Fri-Sun)
Red Feather Lakes, Colorado, United States
1.3 - 2
$300
Crested Butte Ultra
Sep 27, 2025 (Sat)
Crested Butte, Colorado, United States
1.3 - 1.9
$211.17 - $243.12
Sangre de Cristo Trail Festival
Sep 27-28, 2025 (Sat-Sun)
Westcliffe, Colorado, United States
1.4 - 2.8
The Bear Chase
Oct 4-5, 2025 (Sat-Sun)
Lakewood, Colorado, United States
1 - 1.9
$157.92 - $211.17
Indian Creek Trail Runs
Oct 18, 2025 (Sat)
Sedalia, Colorado, United States
1.4 - 1.9
Bridge Burner Ultra
Oct 25, 2025 (Sat)
Cañon City, Colorado, United States
1.2 - 1.5
$157.92 - $168.57
Kessel Run Ultra
Nov 8, 2025 (Sat)
Fruita, Colorado, United States
1.5 - 1.9
$184.55 - $221.82
Showing 1 - 25 of 31 events