Estes Epic

Red Feather Trail Jamboree is a three-day trail running weekend near Red Feather Lakes, Colorado, hosted at the Ben Delatour Scout Ranch and surrounding National Forest. The event features three main races: 50-mile (≈8,500 ft gain), 50K (≈4,200 ft gain), and Half Marathon (≈1,700 ft gain), plus a 3-..

Rocky’s Backyard Ultra is held at the YMCA of the Rockies Estes Park Center in Estes Park, Colorado. Runners must complete 4.167 miles in under one hour each lap, with the field reduced to a single finisher as the race continues until no others remain. The course loops around the boundary of RMNP on..

Boulder XC Series Meet 1 is a family-friendly cross-country event held at Valmont City Park (South) in Boulder, Colorado (5110 Valmont Rd). The meet offers three distances: 1K for younger runners, 3K for those up to 16, and a 5K open race, welcoming participants of all ages and abilities. It’s the f..

The Blue Sky Trail Marathon & Half takes place October 18 (Marathon) and October 19 (Half), 2025, in Fort Collins, Colorado. The races run on trails between Horsetooth Mountain Park and the Devil’s Backbone Open Space along the easternmost hogbacks of the Front Range. Elevation on course ranges..

The Colleen De Reuck XC Classic is a cross country running event held annually at Harlow Platts Community Park in Boulder, Colorado. Honoring renowned distance runner Colleen De Reuck, the race promotes health, fitness, and celebrates local Olympians, with 2025 honoring 2012 Olympic marathoner Yoshi..

Thumbs Up Vertical Challenge takes place in Estes Park, Colorado, on December 6, 2025. The race uses the Thumb Open Space trail, a 2km out-and-back course with 540 feet of vertical gain per lap. The route is 100% single-track with switchbacks, steps and steep rocks, offering views of Longs Peak, Mou..