Trail Running calendar near Winter Park 2026-2027

STRS #4 - Tom's Baby on July 29, 2026 takes place at Tom's Baby Trailhead in Breckenridge, CO, offering short and long course entries with adult, youth, and non-binary categories and published entry fees.

Experience an epic 200 mile point to point team relay from Fort Collins to Steamboat Springs. Run through the heart of the Rocky Mountains and over two scenic mountain passes in this ultimate Colorado road race.

Experience high elevation trail running in the mountains of Fairplay Colorado. This event offers three distances ranging from a half marathon on forest roads to technical ultramarathons through remote wilderness terrain.

A mountain trail event in Aspen on August 1, 2026 offering 50K, marathon and heavy half-marathon mostly on dirt trails with significant elevation gain; limited on-course support and a finish festival at Rio Grande Park.

Experience high alpine racing through the scenic singletrack and forest trails of Winter Park Colorado. Join a point to point mountain adventure with distances ranging from a 10K loop to a technical 50K ultra.

An uphill trail race in Vail that starts at Gondola One and finishes at Mid-Vail, covering about 6.9 km with 2,013 feet of climb. Aid stations provide water and sports drink, and finish-line refreshments and age-group awards are part of the..

Two Brothers Up and Down in Idaho Springs offers two uphill out and back races on mixed dirt and paved roads, with steep sections and an aid station on the 10k. Both races start and finish at Courtney Riley Cooper Park.

The Buena Vista Pack Burro Race will take place in Buena Vista on Sunday 2 August 2026. You can run between 7 and 13 miles.

A four-race August trail series at Lory State Park in Fort Collins featuring 5k, 10k and 12k courses with chip timing, series points and end-of-series awards. Post-race pizza and beverages are provided.

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..

Trail races on Frisco Peninsula offering 5k, 10k and a half marathon with single track and lakeshore finishes, marked courses and aid stations on the longer distances. Awards by overall and age categories and a post race plaza gathering.

Two-day mountain bike and trail running event in Steamboat Springs on August 8 and 9, 2026, featuring mostly singletrack routes and multiple race distances. Proceeds support local nonprofits Partners for Youth and Routt County Riders.

Historic pack burro race in Leadville, Colorado at over 10,000 feet, with a long out and back of about 21 miles toward Mosquito Pass and a shorter 6 to 8 mile course. Teams pair one runner with one burro.

Experience a focused trail run through the hills of Lory State Park with 1,700 feet of elevation gain. Enjoy a post-race social with pizza and beer in a scenic outdoor setting limited to 100 participants.

A four-week midweek trail series at Lory State Park in August featuring short trail races of 5K, 10K, and 12K with varied elevation profiles. Post-race pizza and beverages are provided and series awards go to top point scorers.

The Summit Trail Running Series will take place in Frisco on Wednesday 12 August 2026.

A multi-distance race at Boulder Reservoir, Colorado, featuring a mostly dirt and trail course with about 200 feet of elevation gain and views of the reservoir and the Rocky Mountains.

Experience the first ever trail race through the iconic red rocks of Roxborough State Park. Tackle 50 miles or 50k of technical singletrack and high country terrain before enjoying a finish line celebration with food trucks and local brew.

A trail race at Standley Lake in Westminster, Colorado offering 50K, 35K, Half Marathon, 10K and 5K on packed dirt trails with lake and Front Range views. The event includes on-site music, drop bag areas, and live split tracking.

Summit Grays and Torreys Peaks in this 8.8 mile Colorado endurance event. Participants must carry a 20lb dry load while tackling 4,101 feet of elevation gain.