Niwot’s Challenge

Sedalia Post Office 4195 Douglas Ave, Sedalia, CO, United States

Niwot’s Challenge is a very difficult, grass-roots, ultramarathon in Colorado’s Front Range. It is modeled after the arduous Barkley Marathons in Tennessee, and the historic More and More Difficult 50K […]

Furry Scurry

Washington Park - Denver 701 S Franklin St, Denver, CO, United States

The Furry Scurry is an annual, fun-filled festival and two-mile dog walk at Denver’s Washington Park to benefit the animals at the Dumb Friends League.  No matter where you scurry, every step you […]

Colorado Marathon

Washington Park - Fort Collins 301 Maple St, Fort Collins, CO, United States

Marathon, Half Marathon, 10k, 5k and 3-Person Marathon Relay.  Marathon, Marathon Relay and Half Marathon runners get to run down the scenic, downhill Poudre Canyon to the finish in Old […]

Moose Mudder

Altitude Elementary School 27300 East Southshore Drive, Aurora, CO, United States

Please join us for the Annual Moose Mudder! This is a community event that will consist of an untimed 1k fun walk/run and a timed 5k followed by an optional […]

Fairmount 5K

Fairmount Park Golden, CO, United States

The Fairmount 5k has been an essential fundraiser for almost 30 years at Fairmount Park. This year, following the 5k run, walk and fun run we invite you to stay […]

Western Colorado Trail Running Camp

Wine Country Inn 777 Grande River Drive, Palisade, CO, United States

Join us for a long weekend full of trail running adventures in the colorful desert landscape of Western Colorado's wine country. Life's 2 Short Fitness is teaming up with Becoming […]

Mountain Ridge Trail Race

Mountain Ridge Middle School 10590 Mountain Vista Ridge, Highlands Ranch, CO, United States

Mountain Ridge takes place near Highlands Ranch primarily on the Douglas County East-West Regional Trail. This gently rolling course will keep the Heart Rate pumping while offering some of the […]

Valkyrie Women’s Trail Race

Cheyenne Mountain State Park 410 JL Ranch Heights, Colorado Springs, CO, United States

Valkyrie Trail Race was created as a women only trail/ultra event,  featuring Colorado Spring’s, Cheyenne Mountain State Park.  The race offers amazing views of the city and a diverse eco-system. We have several […]

CMRA Tucker Lake 8K

Colorado Tap House - Arvada 14982 West 69th Avenue, Arvada, CO, United States

The race will start near the Colorado Tap House parking lot and head west along the Ralston Creek Trail toward Tucker Lake. Once reaching Tucker Lake runners will loop around […]

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