Trail Running calendar near Carbondale 2026-2027

Experience the Frisco Peninsula trails with a choice of 5 km, 10 km, or Half Marathon distances. Enjoy a scenic course featuring single track trails and dirt roads with views of Dillon Reservoir and the Ten Mile Range.

Experience a premier two day trail event in Steamboat Springs featuring mountain bike and running races. Navigate scenic singletrack through aspen forests and meadows while supporting local youth and trail advocacy programs.

A running event at Carter Park in Breckenridge on August 12, 2026 offering short and long course entries in Adult, Youth and Non-Binary Open divisions with published entry fees.

A Backyard Ultra at Loudy Simpson Park where runners repeat a 4.167 mile loop until one remains; a Citizens Race offers a single 4.167 mile loop for community participants.

Experience the historic Race Across the Sky in the Colorado Rockies. This legendary 100 mile ultramarathon features over 15,000 feet of elevation gain reaching heights of 12,626 feet.

Experience the high-altitude scenery of Leadville on this 10K course, which follows the first and final miles of the famous LT100 Run. With a single aid station and awards for top finishers, it's a classic mountain run. Registration is open..

A mountain trail half marathon and a mostly downhill 5.6K in Arrowhead on August 22, 2026, featuring single-track terrain, a 9,560 ft summit, aid stations on the half, and age-group awards.

Trail races in Steamboat Springs with 50k, 16-mile, and 5-mile options starting and finishing at Torian Plum Lawn. The cupless event supports trail maintenance and features mountain aid stations, strict cutoffs, and no vehicle access on cou..

Experience a 40 mile point to point ultramarathon through the Elk Mountains from Crested Butte to Aspen. This high alpine challenge features 6000 feet of elevation gain and supports local recreational non-profit initiatives.

Experience a high altitude mountain run at Arapahoe Basin covering 9.4 miles and 2,211 feet of vertical gain. Runners summit Little Lenawee peak and finish with live music and professional photos at Mountain Goat Plaza.

Trail races at the 10,000 foot summit of Rabbit Ears Pass on September 6, 2026, with a roughly 6.8 mile 10k and a 3.4 mile 5k. Proceeds support Steamboat Nordic and awards and a raffle follow the finish.

Experience a scenic trail run through sage brush and ponderosa pines in the Rocky Mountains. Choose between a half marathon or 10k distance with stunning views of the Collegiate Peaks in Buena Vista.

A trail race on Meadow Mountain in Minturn, Colorado featuring 11K and 5K routes across mountain meadows, historic sites, technical singletrack, aid stations offering water and Skratch hydration, and age group awards.

Discover the scenic Elk Mountains in Marble Colorado with trail races ranging from a 25 km loop to a kids fun run. Support a local charter school while enjoying peak fall colors and a post race barbecue meal.

Run Rabbit Run in Steamboat Springs, Colorado offers 50 mile and 100 mile mountain courses through Routt National Forest with roughly 9,000 ft and 22,000 ft of climbing and prize money for the 100 mile.

Mountain trail ultramarathons in Crested Butte, Colorado on September 26, 2026 offer 35K, 55K and 50 Mile courses across alpine meadows and ridges. Aid stations are cupless and the event starts and finishes at Crested Butte Community School..

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.

This bucket-list half marathon runs from Snowmass to downtown Aspen on the scenic Government Trail. It sells out quickly, with registration opening each May for the late September race.

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..