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Greenland Trail Races
The Greenland Trail Races offer four outstanding distances in southern Douglas County. Run the 4 Miler, the 8 Miler, the 25K, or tackle the 50K ultramarathon, Colorado’s fastest 50K! With …
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Trail
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Mountain Ridge Trail Race
Mountain Ridge Middle School 10590 Mountain Vista Ridge, Highlands Ranch, CO, United StatesThis 11th annual trail race serves as the Summer Series opener. It has quickly become a runner favorite among Endurance Race Series front range events. The rolling hills of this …
DU Dash
Palmer LakeJune 9th marks the inaugural IN-PERSON DU Dash hosted by Colorado Ducks Unlimited on the Santa Fe Trail at Palmer Lake. Check out all the race information here.
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Leadville Trail 100 Run Training Camp
Leadville 135 E. 6th Street, Leadville, COOpen to all runners, this camp offers an introduction to the Leadville Trail 100 Run presented by La Sportiva and is the perfect training tool for this year’s race. Seasoned …
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TrailAPalooza
Runners Roost - Golden 2120 Ford St, Golden, CO, United StatesJoin at Runners Roost Golden on Saturday June 22 for TrailApalooza! Meet our top trail brands and go on a fun trail run. Food and beverage to follow the run!
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Sunset Trail Running Festival
Join us Sunday June 23rd, for the Sunset Trail Running Festival in Gold Hill, Colorado. There will be a 28K (17.4M), 12K (7.7M), 5K and Kids 1K trail race, that …
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Leadville Marathon and Heavy Half
Leadville 135 E. 6th Street, Leadville, CORun through the historic mining district’s challenging old mining roads and trails, and hit a high of 13,185 feet at Mosquito Pass during the Life Time Leadville Trail Marathon and …
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Silver Rush 50 Run
Take on 50 miles of extreme territory that starts at 10,200 feet and reaches 12,000 feet on four separate occasions at the Life Time Silver Rush 50 Run presented by …
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Barr Lake Trail Race
Barr Lake State Park (Nature Center) 13401 Picadily Rd, Brighton, CO, United StatesThis 6th Annual event showcases a course that is our flattest and fastest on the ERS schedule with less than 100' of elevation gain per loop. Runners will start and …
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Dirt Circus
Runners Roost - Boulder 629 South Broadway, Suite E, Boulder, CO, United StatesThe Dirt Circus sponsored by UltraSignUp will be hosting the Colorado event at the Runners Roost in Boulder. Join multiple trail brands, race directors, and gear reps for an expo …
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