Trail Running calendar near Gunnison 2025-2026

The Creede 100 is an exhilarating 100-mile ultramarathon set in the historic mining town of Creede, Colorado. With only 100 spots available, this challenging race offers participants breathtaking views of the San Juan Mountains, including climbs above 12,000 feet and scenic trails along the Continen..

The Box Canyon Trail Races in Telluride, Colorado, feature two challenging mountain courses: a 30K and a 10-mile race. The 30K course offers a scenic loop through high alpine terrain with approximately 5,800 feet of vertical gain, passing iconic landmarks like Bridal Veil Falls and reaching elevatio..

Grand Mesa Ultras is an exciting mountain running event held in Grand Mesa, Colorado, featuring races of 50 miles, 55K, and 30K. Set on the world's largest flat-topped mountain, participants can expect challenging trails with rocky climbs, flowing single tracks, and stunning alpine scenery. The even..

The Sheep Mountain Trail Runs, organized by the Human Potential Running Series, is an annual event held in Fairplay, Colorado, featuring a 50-mile, 50k, and half marathon race on August 2, 2025. The courses traverse challenging terrain at high elevations over 10,600 feet, offering runners rugged mou..

The TransRockies Run is a six-day, 120-mile trail running event held in Colorado, offering participants an adventurous experience through stunning mountain landscapes. Known for building a strong community, the event attracts runners from around the world who seek challenging courses, camaraderie, a..

The High Five 100 is a unique ultra-running challenge held in Lake City, CO, designed for elite runners seeking an extraordinary test of endurance. Participants must navigate a course that includes 24 designated proof points and checkpoints, with the goal of returning to Lake City within a 48-hour t..

Pyro's Push It Up Trail Run is an annual trail running event held in New Castle, Colorado, set against the scenic backdrop of the Flat Tops Wilderness. The race offers three distance options: a family-friendly 3.5K, a more challenging 7.7K, and a demanding 13K Double Down course featuring steep, rug..

The Leadville Trail 100 Mile Run, known as the "Race Across the Sky," is a prestigious ultramarathon held annually in Leadville, Colorado. Established in 1983, this grueling race challenges participants with a 100-mile out-and-back course that features extreme elevation changes, including a peak at..

The Arrowhead Half Marathon and 5K is a scenic running event held in Arrowhead, Colorado, featuring a challenging half marathon course with approximately 3,000 feet of elevation gain over 13 miles. Participants traverse beautiful trails across Arrowhead, Bachelor Gulch, and Beaver Creek Ski Resorts...

The Rio Grande 100 is an exhilarating ultramarathon set in the stunning La Garita mountains of South Fork, Colorado. This challenging race features a course that starts and finishes along the banks of the Rio Grande River, taking participants through diverse terrains, including arid forests and alpi..

The Telluride Mountain Run is a challenging and technical race set in the stunning San Juan Mountains near Telluride, Colorado. Participants can choose from three demanding routes: 40 miles, 24 miles, and 13 miles, navigating through old mining roads, singletrack trails, and alpine tundra. Runners w..

The Creede Mountain Run, established in 1987, is a celebrated annual event held in Creede, Colorado, offering a range of race distances including 2, 12, 22 miles, and a challenging 50K. Set against the stunning backdrop of the San Juan Mountains, participants experience a scenic course that begins i..

The Grand Traverse Mountain Run is a challenging 40-mile point-to-point ultra marathon from Crested Butte to Aspen, Colorado, following the route of the historic Grand Traverse Backcountry Ski race. Participants traverse the Elk Mountains, gaining over 6,000 feet of elevation, and experience stunnin..

The Ouray 50 Mile Endurance Run is a challenging ultramarathon set in the stunning mountain scenery of Ouray, Colorado. With an elevation gain of 23,582 feet, this race is designed to be more difficult than many 100-mile events, featuring highly technical trails and an average elevation of nearly tw..

The Meadowgold 5k &10k will take place in Minturn on Saturday 13 September 2025. You can run between 5 and 11 kilometers.

Blisters & Brews is a 5k fundraiser race held in Telluride, designed for attendees of the Telluride Blues & Brews Festival to enjoy a morning of exercise before the festivities begin. The event supports the Telluride Adaptive Sports Program and features a scenic route that includes views of Bridal V..

The Ouray Mountain Trail Run is a 13-mile mountain race held in Ouray, Colorado, starting and ending at Fellin Park. The event offers stunning views of the surrounding mountains and is designed to challenge participants while supporting local education initiatives. It is organized as a fundraiser fo..

The Crested Butte Ultra is a scenic trail running event held in Crested Butte, Colorado, featuring distances of 50 miles, 55K, and 35K. Runners traverse the stunning Gunnison National Forest, experiencing diverse terrain including mountain meadows, ridges, and wildflower-filled lower elevations. The..

The Golden Leaf Half Marathon will take place in Aspen on Saturday 27 September 2025. You can run 13 miles.

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..