Trail Running calendar near Leadville 2026-2027

Trail Sisters Women's Half Marathon and 10K in Buena Vista, Colorado, feature trail courses through sagebrush and ponderosa pines with views of the Collegiate Peaks, and offer both group and solo participation options.

Trail races on Meadow Mountain in Minturn offering 11K and 5K courses on singletrack and dirt trail, with aid stations, post-race refreshments, and series awards.

Mountain trail and road races in Marble, Colorado featuring a 25K Lead King Loop, an 8 mile Quarry Climb, and a kids 2.5K with proceeds to Marble Charter School.

A community trail race on North Table Mountain near Golden, CO, offering 10 Mile and 5 Mile courses. Organized by BeyondHome to support families moving from homelessness to self sufficiency.

A 13.32 mile ascent from Manitou Springs to the summit of Pikes Peak with about 7,867 ft of elevation gain on September 19, 2026.

Experience a 26.2 mile mountain run from Manitou Springs to the summit of Pikes Peak and back. This historic event features over 7800 feet of elevation gain and a 10 hour time limit.

A mountain ultramarathon in Crested Butte, Colorado on September 26, 2026, offered in 35K, 55K and 50 mile distances. Courses run through Gunnison National Forest with single track trails, alpine meadows, cupless aid stations, and on course..

Experience desert style single track and forest roads with views of the Collegiate Peaks in Buena Vista. Choose between 50k or 30k distances as part of the multi sport 14er Fest.

A community driven 24 hour endurance race on a *0.82 mile* loop atop the Palmer Divide in Palmer Lake, Colorado. Top distance finishers receive awards and the first ten runners to reach 100 miles receive onsite buckles.

A half marathon from Fanny Hill in Snowmass along the Government Trail through aspen groves to Koch Lumber Park in downtown Aspen.

A point to point trail race from Vail to Minturn with 26K and 14K courses across Vail Mountain. Both routes feature alpine singletrack, scenic views of Mt. Holy Cross, staffed aid stations and a post race lunch voucher.

A *5K* trail run on Town of Breckenridge Trails that finishes at Blue River Plaza on Main Street during Breckenridge Oktoberfest. Field limited to 300 runners; first 250 registrants receive a long-sleeve technical tee and 21+ entrants get a..

A high alpine 50k in Nathrop, Colorado, featuring Colorado Trail singletrack, about 7,000 ft of climb and panoramic Sawatch Range views.

A fall trail event in Buena Vista, Colorado on September 27, 2026 offering a 14K trail race with over 500 feet of elevation gain and a 5K along the Arkansas River. Both races start and finish at Vendor Village near the Eddyline Beer Garden.

The 4th annual Greenland Open Space Pack Burro Race in Larkspur, Colorado offers 8 Mile and 3 Mile pack burro divisions. Teams must register a burro partner, follow animal welfare rules, and the field is limited to 75 participants.

Trail races of 50K, 28K and 15K take place in Hartman Rocks near Gunnison Colorado on October 3 2026. The course mixes slickrock, singletrack and doubletrack with wide mountain and basin views.

A weekend of looped trail races at Bear Creek Lake Park near Lakewood CO offering 100K, 50 Mile, 50K, half marathon, 10K and 5K on mostly singletrack dirt.

Experience the scenic HRCA Backcountry Wilderness Area with trail races for the whole family. Enjoy rolling hills and open views followed by a pancake breakfast and finisher medals for all participants in Littleton.

A Woodland Park trail event featuring 50k and 10k options on singletrack and forest roads with views of Pikes Peak, stocked aid stations, and crew access for the 50k.

Multiple trail races and a family obstacle run take place on Castle Rock ridgeline trails, with timed 5K to 50K options, chip timing, finisher medals and proceeds from the liveBIG race supporting the town’s Therapeutic Recreation Program.