Trail Running calendar near Mesa 2026-2027

Trail races in Eagle, Colorado on May 16, 2026 featuring a 14K and a 6K on mostly single track. Aid stations, finish-line refreshments, age-group awards and an afterparty at Capitol Public House follow the event.

Challengers tackle a 6 mile climb gaining 2000 feet of elevation to reach the South Rim of the Black Canyon. Choose between a timed run or a scenic walk ending with a mountain breakfast and park views.

Point-to-point trail races in Carbondale, Colorado offering a 10-mile and a 28k course over Prince Creek, Buckhorn and Glassier trails; organized aid stations and a weekend film festival accompany the event.

A Memorial Day trail event in New Castle, Colorado, honoring a fallen hero with riverfront routes. Options include 3.5 km and 7.7 km courses with both in person and virtual entries.

A mountain trail event in Snowmass Village on June 5-6, 2026 offering a 6.6 mile Red Loop and timed 6 hour and 24 hour ultras, with campground hub, on-site amenities, and 2026 as the final year at Snowmass.

A two-day team relay in Snowmass Village on June 5 to 6, 2026, featuring teams of four or eight covering 120 miles and 17,888 feet of gain, with camping, village amenities and alpine trail scenery.

A three-race trail series at Sunlight Mountain Resort in Glenwood Springs from June to September 2026, featuring 5k, 10k and a half marathon. Each event has specific bib pickup, registration rules, and course support details.

Trail running and mountain biking near Crested Butte with 15 km and 25 km options. Courses include alpine climbs to near 11,000 ft, limited aid stations, and non traditional prize drawings.

Trail running event in Mesa, Colorado on July 18, 2026 offering 5 km and 15 km courses. Organized by the Grand Junction Sports Commission; volunteers can register and full refunds or deferrals apply if canceled for severe weather.

Experience the mountain trails of Aspen Snowmass with three distinct race distances. Runners can choose between a 50K trek across four mountains a 25K trail run or a 10K course starting from the Elk Camp Gondola.

Trail ultramarathons on Colorado's Grand Mesa with three distances, mountain single track, alpine scenery, camping options, awards, and post race food and beer.

A multi-distance trail running event in Aspen, Colorado, held on mostly dirt trails with substantial elevation gain. The race centers at Rio Grande Park and takes place alongside a park festival that includes live music and food.

A two day untimed trail event at New Belgium Ranger Station in Snowmass Village offering 3.76k, 5k and 10k distances. Completing all three earns the 18.76k Challenge medal; the event includes a free craft brew, medals, music, food, and vend..

A single-loop trail event in the La Sal Mountains offering 100 mile, 50 mile, and 50k distances. The 100 mile course averages over 8,700 ft elevation with roughly 25,000 feet of climbing and multiple staffed aid stations.

A point to point ultramarathon from Crested Butte to Aspen covering about 40 miles and over 6,000 feet of climb, held as a fundraiser for Crested Butte Nordic with mandatory safety gear and on course aid stations.

Low-key trail running event in Loma, Colorado offering Half Marathon, Marathon (26.2 Miles) and 50 Miler with a flat $50 entry fee. Registration runs April 5 to August 1, and participants may change distance on race day.

A fall mountain event on September 13, 2026 featuring a 25K loop past Crystal Mill, an 8 mile Quarry Climb, and a 2.5K kids run, with a post-race BBQ and proceeds benefiting Marble Charter School.

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..

A scenic half marathon presented by ACG that runs from Fanny Hill in Snowmass along the Government Trail through Aspen groves to Koch Lumber Park, held each late September with registration opening in April.

John Wayne Grit Series Moab on September 26 2026 features a Half Marathon and 10K through red rock country near Moab, with packet pickup and shuttle service from Red Cliffs Lodge, aid stations on course, and finisher mug and shirt.