Trail Running calendar near Fairplay 2025-2026

The Breckenridge Oktoberfest 5K is a festive running event held in historic downtown Breckenridge, Colorado, as part of the annual Oktoberfest celebration. This 5K trail run takes participants through scenic Town of Breckenridge Trails, showcasing beautiful fall foliage and changing aspens. The race..

The Ned Ned Half Marathon is a long-standing trail running event held in Nederland, Colorado, a picturesque mountain town at 8,236 feet elevation. Celebrating over 43 years, the race features a challenging 13.3-mile half marathon with 1,408 feet of elevation gain, traversing dirt roads and single-tr..

Snow Mountain Ranch Trail Running Festival, held in Granby, Colorado, offers a scenic and challenging trail running experience with race distances of 50K, 33K, Half Marathon, 10K, and 5K. Set at the YMCA of the Rockies, the courses feature 100% dirt trails winding through rolling hills, golden aspen..

The Pony Express Trail Run is a scenic trail race held at Rampart Reservoir near Woodland Park, Colorado, at elevations between 9,000 and 9,400 feet. Offering two distance options—8.5 miles and 16 miles—the course features rolling single-track dirt trails with rocky sections and exposed roots, inclu..

The Pikes Peak Marathon, held in Manitou Springs, Colorado, is a challenging mountain marathon known as "America's Ultimate Challenge." The race covers the full marathon distance and requires participants to complete a qualifying run due to the demanding trail to the summit of Pikes Peak. The event..

The Crested Butte Ultra, held in Crested Butte, Colorado, offers runners a chance to experience some of the nation's best trails through the stunning Gunnison National Forest. The event features multiple distances, including a 50-mile, 55K, and 35K race. Participants traverse single-track trails tha..

The West Line Winder is a scenic trail running event held in Buena Vista, Colorado, featuring both 30K and 50K races. Set against the stunning backdrop of the Collegiate Peaks, participants can enjoy a mix of singletrack and forest roads, with significant elevation gain. This event caters to runners..

The 24 Hours of Palmer Lake is an endurance running event held in Palmer Lake, Colorado, featuring a 24-hour race on a scenic 0.82-mile loop course. Situated atop the Palmer Divide at an elevation of 7,240 feet, the course offers beautiful mountain surroundings. This community-driven event focuses o..

The Golden Leaf Half Marathon is a scenic running event held annually in late September, starting at Fanny Hill in Snowmass and finishing at Koch Lumber Park in downtown Aspen, Colorado. The course follows the Government Trail, winding through beautiful Aspen groves, offering runners a picturesque a..

The Sawatch Ascent 50k is a challenging high-alpine trail race held in Nathrop, Colorado, showcasing the stunning Sawatch Range. Covering 33 miles with 7,000 feet of vertical gain, the course features a mix of 26 miles of singletrack, paved, and gravel roads. Starting and finishing at the base of Mo..

The Rim to Rim Royal Gorge Races is an exciting running event featuring a 5K road run, an 8-mile trail run, and a half marathon trail run, all set against the stunning backdrop of the Royal Gorge Bridge in Canon City, Colorado. Participants will experience challenging terrains and breathtaking views..

The Above The Clouds Ultra is an annual trail running event held in Woodland Park, Colorado, featuring 50K and 10K race distances. Set against the stunning backdrop of Pikes Peak, known as "America’s Mountain," the course offers runners vibrant Colorado fall colors and fast, flowing singletrack trai..

The Bear Chase Race is an endurance trail running festival held at Bear Creek Lake Park in Lakewood, Colorado. It offers multiple race distances including 100K, 50 Mile, 50K, Half Marathon, 10K, and 5K, catering to both first-time ultramarathoners and experienced trail runners. The course features m..

The Castle Rock Trail Festival, also known as the liveBIG Run, is an exciting trail running event held in Castle Rock, Colorado, featuring courses through the scenic Philip S. Miller Park and Ridgeline Open Space. It offers a variety of distances to suit all levels, including a 5K, 10K, half maratho..

The Pikes Peak Road Runners Fall Series is a challenging cross country trail running event held in Colorado Springs, Colorado. It features four races of increasing distances—3.8 to 7.4 miles—across diverse city and county parks including Bear Creek Terrace, North Monument Valley Park, Piñon Valley P..

The Suffer Better Fall Trail Run is an annual mountain endurance event held at Staunton State Park, Colorado. The 9th edition, scheduled for October 11, 2025, features multiple race distances including a challenging 50K, a 25K with a unique Fishslappers division involving fish catching, and a new 5K..

The Sage Burner Trail Race takes place in the scenic Hartman Rocks Recreation Area near Gunnison, Colorado, surrounded by sagebrush-covered hills and offering stunning 360-degree views of the Maroon Bells, San Juan Mountains, and Gunnison Basin. This challenging trail event features distances of 50K..

The Great Trailhead Foot Race 10 Miler, held at Bear Creek Lake Park in Lakewood, Colorado, offers runners a scenic trail experience with single-track dirt paths against the backdrop of Denver's skyline. Participants can choose between a 5-mile or a challenging 10-mile double-lap course. Registratio..

The Bobcat Trail Race, held in Palmer Park, Colorado Springs, is a celebrated urban trail running event showcasing the park's rugged beauty and panoramic views of the city and Pikes Peak. Organized by Aravaipa Running since 2024, it offers four race distances: 50K, 25K, 10K, and 5K, catering to a ra..

The Indian Creek Trail Runs, part of the Human Potential Running Series, is an annual fall trail running event held at Indian Creek Campground in Sedalia, Colorado. Celebrating its 12th year in 2025, the race offers multiple distances: 5-Mile, 15-Mile, 55k, and 50-Mile, with time limits of 12 to 14..