Trail Running calendar near Vail 2026-2027

The Estes Epic returns to Colorado's mountains with trail runs and a mountain bike race. Choose from a 50k run, a heavy half marathon, a 50k bike race, or the ultimate "Epic" double. The event supports the local high school mountain bike te..

This bucket-list half marathon runs from Snowmass to downtown Aspen on the scenic Government Trail. It sells out quickly, with registration opening each May for the late September race.

The Bear Chase Trail Race is a two-day endurance festival in Colorado's Bear Creek Lake Park. On Saturday, runners can tackle ultra distances from 50K to 100K, while Sunday features shorter races like a half marathon, 10K, and 5K. The cours..

Explore the scenic HRCA Backcountry Wilderness Area on this autumn trail race near Wildcat Mountain. Choose between a 10-mile or 10K course on rolling dirt trails. The event includes a kids' race and features a pancake breakfast and post-ra..

The Emerald Mountain Trail Run offers two scenic distances on the aspen-lined trails of Emerald Mountain in Steamboat Springs. The event concludes the SSRS running series and raises funds for the Boys & Girls Club. Hikers are welcome on the..

A Halloween-themed 5K run or walk in Aspen that benefits the local animal shelter. Bring your pet in costume for a chance to win prizes. The timed race offers cash prizes for top finishers and includes festive activities.

A multi-distance trail event at Indian Creek Campground near Sedalia, Colorado, featuring single-track routes through montane forests, aspens and red rock views, with 5-Mile, 15-Mile, 55k and 50-Mile options and limited entry.

Run on scenic trails at Bear Creek Lake Park with views of Denver. Choose between a 5-mile loop or a two-lap 10-mile challenge. Your entry includes park admission, a t-shirt, and a finish line celebration with food and drinks.

Methodist Mountain Ultra The Methodist Mountain Ultra (MMU) is a trail race set on the Methodist Mountain trail system near Salida, Colorado. It takes place at the northern end of the Sangre de Cristo mountains. The event features two dista..

Trail races at Bear Creek Lake Park offering 5 km, 15 km, a 5 km plus 15 km double, and a Kids 1 km. Main race registration includes socks or a neck gaiter and a pancake breakfast while kids receive a stuffy at the finish.

A single-loop 13.1-mile trail half marathon in the Highlands Ranch Backcountry Wilderness near Lone Tree, CO, featuring dirt and singletrack terrain, four aid stations, finisher rewards, post-race food and beverages, and cash prizes for top..

Trail races in Louisville, Colorado on November 14, 2026 offering Half Marathon, 10K and 5K on dirt trails with front range views, aid stations, a cupless initiative, and limited onsite parking.

The Sawmill Trail Runs offer three scenic trail distances at Staunton State Park in Colorado. This popular event with limited capacity requires off-site parking and a shuttle. Participants should prepare for unpredictable December mountain..