Trail Running calendar near Beaver Creek 2025-2026

The Run the Rockies Trail Race in Frisco, Colorado, offers 5k, 10k, and half marathon distances along scenic trails on the Frisco Peninsula. The course features single track and dirt road trails with stunning views of Dillon Reservoir and the Ten Mile Range. Starting and finishing at the Frisco Nord..

Dirt Circus - Boulder is a free community running event held in Boulder, Colorado, celebrating local trail running culture. Organized by UltraSignup, the event features a social group run with options of a casual 4.5-mile or 10k route through the local area. Beyond the run, participants enjoy a fest..

Pyro's Push It Up Trail Run is a scenic mountain trail race held in New Castle, Colorado, within the Flat Tops-White River National Forest. Participants can choose from three distances: a family-friendly 3.5K, a moderate 7.7K, or a challenging 13K "Double Down" course. The trail features beautiful A..

The Buena Vista Pack Burro Race will take place in Buena Vista on Sunday 10 August 2025. You can run between 7 and 13 miles.

The Leadville Trail 100 Mile Run, held annually in Leadville, Colorado, is a legendary ultramarathon known as the "Race Across the Sky." Established in 1983, this grueling 100-mile out-and-back course challenges runners with extreme Rocky Mountain terrain, starting at 10,200 feet and reaching a peak..

The Arrowhead Half Marathon & 5K is a scenic trail running event held in Arrowhead, Colorado, part of the Vail Trail Running Series. The half marathon covers approximately 13.7 miles with a challenging 2,924 feet of elevation gain, traversing trails across Arrowhead, Bachelor Gulch, and Beaver Creek..

The Byers Peak Stampede Half Marathon & 5K Run takes place in Fraser, Colorado, nestled in the Rocky Mountains about 60 miles from Denver. The event features a challenging half marathon and a 5K race, both primarily on dirt roads and trails with stunning mountain views. The half marathon starts at a..

The Continental Divide Trail Run in Steamboat Springs, Colorado, offers trail races of 5 miles, 16 miles, and 50 kilometers. Set against the stunning backdrop of aspen and pine forests with sweeping views of the Yampa Valley, the courses feature significant elevation gains. The 16-mile race includes..

Staunton Rocks! Marathon & Half is a trail running event held at Staunton State Park in Pine, Colorado, featuring marathon (26.3 miles, 4,500 ft elevation gain) and half marathon (13.1 miles, 2,200 ft gain) distances. The course is predominantly singletrack (90%) with some dirt roads, set at high el..

The Grand Traverse Mountain Run is a challenging 40-mile point-to-point ultramarathon from Crested Butte to Aspen, Colorado, traversing the Elk Mountains with over 6,000 feet of elevation gain. Held annually, the race follows the route of the Grand Traverse Backcountry Ski race, offering runners a r..

The Calarat Challenge Trail Running Festival takes place in Jamestown, Colorado, at the Cal-Wood Education Center, a nonprofit dedicated to outdoor education. Held over Labor Day weekend, the event features multiple trail races including a half marathon, 10K, 5K, Kids 1K, and combination races like..

The 10k @ 10,000 Feet is a challenging trail running event held at the summit of Rabbit Ears Pass near Steamboat Springs, Colorado. Known for its breathtaking mountain scenery, the race features a course starting at 10,000 feet elevation, with about 1,200 feet of elevation gain and loss. The main ra..

Devil on the Divide is a challenging trail running event held in Empire, Colorado, featuring 50K and 22K point-to-point courses. Set against the stunning backdrop of Clear Creek County and the Continental Divide, the race offers breathtaking views and high-altitude terrain, with the 50K course reach..

The Cirque Series race at Arapahoe Basin, Colorado, is a challenging 9.2-mile trail run with 2,411 feet of vertical gain, set in the scenic White River National Forest. Starting at 10,780 feet at Mountain Goat Plaza, the course ascends through diverse terrain including summer roads, singletrack hiki..

The Breckenridge Oktoberfest 5K is a festive trail run held in historic downtown Breckenridge, Colorado, as part of the annual Oktoberfest celebration. Scheduled for Saturday, September 13, 2025, the 5K course winds through the scenic Town of Breckenridge Trails, showcasing beautiful fall foliage an..

Run Rabbit Run is a challenging ultramarathon event held in Steamboat Springs, Colorado, featuring 50-mile and 100-mile races through the scenic Routt National Forest. The 50-mile course starts at the Steamboat Springs ski area (6,900 ft elevation), ascending to Mount Werner (10,568 ft), crossing th..

The Ned Ned Half Marathon, held in Nederland, Colorado, is a celebrated trail running event with a 43-year tradition. The race features a challenging 13.3-mile course with 1,408 feet of elevation gain, winding through dirt roads and single-track mountain trails that showcase the scenic beauty and hi..

The Snow Mountain Ranch Trail Running Festival, held at the YMCA of the Rockies in Granby, Colorado, offers a scenic and challenging trail running experience with race distances of 50K, 33K, Half Marathon, 10K, and 5K. Set amidst rolling hills, golden aspen groves, and mountain vistas, the courses f..

The Lead King Loop 25K is a scenic running and hiking event held in the heart of Colorado's Elk Mountains near Marble. Participants can run, walk, or hike the 25K course that winds through Lead King Basin, past the iconic Crystal Mill, and through the historic Town of Crystal, showcasing breathtakin..

The Crested Butte Ultra, held in Crested Butte, Colorado, offers runners a challenging and scenic experience through the Gunnison National Forest. The event features three distances: a 50-mile, 55K, and 35K race. Participants traverse single-track trails that wind through mountain meadows, ridges, a..