Trail Running calendar near Winter Park 2026-2027

A trail running festival at Snow Mountain Ranch in Granby, CO featuring 50 km, 33 km, half marathon, 10 km and 5 km courses on dirt and grass trails with significant elevation, aid stations, drop bag support, and on site lodging and camping..

A 13.5 mile trail half around Lory State Park near Fort Collins with about 2,000 feet of climb, marked singletrack, aid stations, and a free one mile kids race.

Mountain trail races in Empire, Colorado on September 12, 2026 offering 50K and 22K point-to-point dirt courses with significant elevation gain; prior ultra experience is required for the 50K.

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.

A trail race on Meadow Mountain in Minturn, Colorado offering an 11K and a 5K route across singletrack and meadows with stream crossings, scenic mountain views, on-course aid stations, and finish-line t-shirts and refreshments.

A two-day ultramarathon in Steamboat Springs on September 18 and 19, 2026 featuring 100 mile and 50 mile trail races with limited fields and multi hour cutoffs. The race is a charity event with a significant prize purse and active volunteer..

Trail races of 10 and 5 miles on North Table Mountain in Golden, Colorado on September 19, 2026. Organized by BeyondHome to raise funds for families moving from homelessness to self sufficiency.

A set of cross-country races at Expo Park in Aurora, Colorado, with grassy loops from 2 km to 5 km, creek crossing and bale jumps. Multiple youth age categories and an open 5 km are offered.

Experience the wild spaces of Northern Colorado with a weekend of trail races ranging from a half marathon to a 50 mile ultra through scenic forests and scout camp trails. Stay on site with available camping and community meals.

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 24-hour endurance race on a 0.82 mile loop atop the Palmer Divide in Palmer Lake, CO. Top three awards and onsite buckles for the first 100-mile finishers; $5 from each registration supports local parks.

A two-day trail and bike event in Estes Park featuring 31-mile bike and run options, a 15-mile heavy half, and a 62-mile duathlon, with rugged trails, significant climbs, and aid stations supporting competitors.

A scenic half marathon from Fanny Hill in Snowmass along the Government Trail through Aspen groves to Koch Lumber Park in downtown Aspen, presented by ACG and hosted by the Ute Mountaineer and the City of Aspen each late September.

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 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.

A multi distance trail weekend at Bear Creek Lake Park in Lakewood Colorado offering 100K, 50 Mile, 50K, half marathon, 10K and 5K on mostly dirt singletrack with aid stations, drop bag support and on site medical.

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.