50K

Samson was the celebrity elk of the Rockies until he was illegally poached in 1995 on YMCA grounds. Our race runs on Samson's home turf, The YMCA of the Rockies, which his descendants still call home. The course is fast single track with a…

Join us for the Denver Beer Co. 50k run on Saturday, May 3, 2025. This unique urban odyssey 50k run connects all 5 Denver Beer Co. Taprooms (Olde Towne Arvada > Platte St. > Lowry > South Downing > Littleton). Compete as a…

The 2nd Annual Latino Ultra Nature Adventure (LUNA) is a culturally relevant and equity driven new kind of Ultra powering the physical and mental health that comes from the mix of athletics, awe inspiring nature, and forest bathing. LUNA…

We are pleased to present one of the most beautiful and challenging trail racing events in the state of Colorado with breathtaking (literally and figuratively) views of Clear Creek County and the Continental Divide. Participants will reach…

Colorado Cold Rush Ultra is the "coolest" winter running event! Run along historic High Drive and through the amazing tunnels of the Colorado gold rush. Although there is always a possibility of snow, the course is an exceptional route for…

Held on the gorgeous, thrilling and rolling trails of Castle Rock’s Miller Park & Ridgeline Trail systems. While not overly technical, these trails will challenge and excite, as you soak up the amazing views. This is an excellent…

Distances: 50k (9 hour cutoff) and 16 mile (7 hour cutoff) and 5 mile (New!)

The race will be held at Riverdale Regional Park, Pavilion B, in Brighton Colorado.  Proceeds benefit INSPIRATIONFIELD.  INSPIRATIONFIELD works with the developmentally disabled in Otero County (La Junta, Colorado) and surrounding area.…

Weaving and rambling across the various rolling hills of Staunton State Park, the Sawmill Trail Runs serve as the ultimate test for December running. Runners will enjoy a single loop for 8-Miles, a double loop for 16-Miles, or the triple…

Canyonlands 100 Mile, 125K, 50 Mile, Marathon, Half Marathon, and 15K Canyonlands Ultra starts and finishes at the Behind the Rocks Trail, along the border of the Behind the Rocks Wilderness Study Area. Moab's last hidden gem; its tall…