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Race in the Clouds Dirt Festival

Buckskin Cemetery 227 Buckskin Street, Alma

Get ready for a weekend of epic outdoor adventure at 10,600 feet in beautiful Alma, Colorado—the highest incorporated town in North America! Whether you love mountain biking, trail running, off-road […]

The John Cappis

Silverton 414 Greene Street, Silverton

What A free mountaineering jaunt originated by James Varner in honor of the legendary John Cappis, one of the founders of the Hardrock 100. The course gets tweaked from year […]

Timberview Trail Run

Lory State Park 708 Lodgepole Dr, Bellvue

Crisp morning air and a summer sunrise in Colorado. YES PLEASE! Join us on the foothills at Lory State Park for a fun & beautiful morning trail race. This run […]

$20 – $50

Lake to Lake Triathlon

Loveland High School 920 West 29th St., Loveland

Loveland Lake to Lake Triathlon has welcomed athletes from Northern Colorado, this entire state, region, country,  and outside the USA for 24 years and we are excited about our 2025 […]

Slacker Half Marathon

Strousse Park - Georgetown 6th & Rose St, Georgetown

The Slacker races are always held on the 4th Saturday in June! We’re excited to announce a new change for next year:  wave starts will be enhanced to help ensure […]

Leadville Trail Marathon

Leadville Race Series
Leadville 124 E. Sixth Street, Leadville

Run 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 Leadville Trail Marathon or Heavy Half […]

Before The Fourth 5K

Clement Park 7306 W. Bowles Avenue, Littleton

Come join the Before The Fourth 5k for some healthy fun in Clement Park. The park is located just south of Denver, in Littleton, Colorado. This is a great opportunity […]

Chase the Moon Trail Race

Mountain Vista High School 10585 Mountain Vista Ridge, Highlands Ranch

Chase the Moon is a 12-hour team relay and solo ultramarathon, run overnight under the light of the full moon in the Highlands Ranch Backcountry trail system (we promise some […]

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