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Cookie Chase 5K
Sloan's Lake 4600 W Bryon Pl, Denver, COThe Cookie Chase is Denver’s race that ends with cookies. Runners and walkers can take advantage of a flat and fast course, and then enjoy fresh cookies at the finish. …
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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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Hero’s Journey 5K
7/20 Memorial Foundation Reflection Garden Memorial 15151 E Alameda Pkwy., Aurora, COJoin us for the 3rd annual Hero’s Journey 5k Run/Walk. This unique point-to-point race makes its way through Aurora's City Center and culminates in the 7/20 Memorial Reflection Garden. For …
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Sundown XC
Aurora Sports Park 19300 E Colfax Ave, Aurora, COHave you put in the hard yards this Summer? Want to show everyone you are ready for the Fall racing season? There is no better place to do than Sundown …
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Pearl Street Mile
Join us on Saturday August 3rd, for our criterium style, multi-lapped course that starts on Spruce St (between 13th and 14th Street), and completes 3.75 laps around the Boulder Court …
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Evergreen Town Race
The Evergreen Town Race is a fundraiser for the Alpine Rescue Team. Both the 5K and 10K courses wind gradually down Upper Bear Creek, with a finish near Evergreen Lake. …
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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 …
Free
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Q-Man Classic
Highlands Ranch High School 9375 Cresthill Ln., Highlands Ranch, COHighlands Ranch High School (HRHS) is proud to once again host the 15th annual Q-Man Classic. This is a memorial race for Quinton Sanford, a student-athlete with Autism at HRHS who …
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Leadville 10K Run
Leadville 135 E. 6th Street, Leadville, COHeld the weekend of the historic Stages Cycling Leadville Trail 100 MTB, the Leadville 10K Run is the shortest run in the series, but covers the first and last 3.1 …
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Leadville Trail 100 Run
Leadville 135 E. 6th Street, Leadville, COThe legendary “Race Across The Sky” 100-mile run is where it all started back in 1983. This is it. The race where legends are created and limits are tested. One …