Leadville Trail 10K
Leadville 124 E. Sixth Street, Leadville, CO, United StatesThis out-and-back course uses the first and last 3.1 miles of the LT100 Run course, featuring paved and dirt roads. Held the weekend of the historic Leadville Trail 100 MTB, […]
San Juan Softie 100
Durango Nordic Center 49786 Hwy 550 N, Durango, CO, United StatesThe softest 100 miler in the San Juans This 100 mile ultra marathon starts and finishes just north of Durango, Colorado. The race will take you through some of the […]
Leadville Trail 100
Leadville 124 E. Sixth Street, Leadville, CO, United StatesThe 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 […]
Mt Sneffels Half Marathon
Ouray Ouray, CO, United StatesThe Mt. Sneffels Half-Marathon and Kids Fun Run began 25 years ago. In 2021, the 10 K was added. The Race is the foundation’s major fundraising event of the year. It […]
Summer Sizzler 5K
Westfield Village Park 115th & Sheridan Blvd., Westminster, CO, United StatesJoin us for the annual Summer Sizzler! Whether you are looking to run, walk or just enjoy the race SWAG this race is a sure thing for a great time […]
Valley 5000
Mehaffey Park 3285 W 22nd St, Loveland, CO, United StatesWith over 300 runners expected and even more spectators, this will be an amazing year for the 39th Valley 5000, hosted by Sweetheart City Racing. This run/walk is scheduled to […]
Summer Sizzler 5K
Cottonwood Park 8830 Apache Plume Dr, Parker, CO, United StatesJoin us on July 15th, 2023 for the annual Summer Sizzler, featuring the amazing scenery of America the Beautiful Park! Whether you are looking to run, walk or just enjoy […]
Erie Half
Reliance Park 900 Weld County Road 1.5, Erie, CO, United StatesJoin us for the Erie Half and 5k! The Hometown Race Series features half marathons and 5k distance events in outlying communities outside the Denver and Boulder metro areas. LOOK […]
NoCo Urban Ultra & Relay
Island Grove Park 501 N 14th Ave, Greeley, CO, United StatesA collaboration event between run.Windsor and Breakaway Athletic Events celebrating the Poudre River Trail. This long-distance race takes you on a sprawling tour of Northern Colorado via the picturesque Poudre River Trail. You'll enjoy […]
Continental Divide Trail Run
Steamboat Springs Ski Resort 2305 Mt Werner Cir, Steamboat Springs, CO, United StatesDistances: 50k (9 hour cutoff) and 16 mile (7 hour cutoff) and 5 mile (New!)
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