Trail Running calendar near Como 2025-2026

The Cirque Series - Arapahoe Basin is a challenging mountain running event set for September 6, 2025, in Keystone, Colorado. Participants will tackle a 9.4-mile course with an elevation gain of 2,411 feet, starting at 10,780 feet. The race features three divisions: Sport, Expert, and Pro, catering t..

The HRCA Wildcat Mountain Trail Races, scheduled for September 6, 2025, in Littleton, Colorado, features a variety of events including a 10K, 10M, and a Kid's Race. The race begins at the Douglas County East/West trailhead and takes participants through the scenic HRCA Backcountry Wilderness Area. R..

The Breckenridge Oktoberfest 5K is an exciting running event that kicks off the annual Oktoberfest celebration in Breckenridge, Colorado. Set against the stunning backdrop of the changing aspens and beautiful mountain scenery, this 5K trail run takes participants through the picturesque Town of Brec..

The Ned Ned Run is a celebrated annual running event held in Nederland, Colorado, featuring a variety of race options including a Half Marathon, 10K, and 5K. This family-friendly event encourages participants to enjoy the scenic beauty of the area while navigating dirt roads and single track trails...

The Meadowgold 5k &10k will take place in Minturn on Saturday 13 September 2025. You can run between 5 and 11 kilometers.

The Snow Mountain Ranch Trail Race, taking place on September 13, 2025, in Granby, Colorado, is a scenic trail running festival featuring multiple race distances: 50K, 33K, Half Marathon, 10K, and 5K. Set against the stunning backdrop of the Rockies, participants can enjoy the vibrant fall colors an..

The Pony Express Trail Run is a scenic trail running event held at Rampart Reservoir, featuring two distance options: 8.5 miles and 16 miles. Set at an elevation of over 9,000 feet, participants can enjoy beautiful single-track trails, creeks, and the vibrant colors of autumn. The event is intention..

The Pikes Peak Marathon, established in 1956, is the oldest continuously held marathon in the United States. This challenging race takes participants from Manitou Springs, Colorado, to the summit of Pikes Peak, reaching an elevation of 14,115 feet, and back down, covering a total of 26.2 miles. The..

The Crested Butte Ultra is an exciting running event set in the picturesque Crested Butte, Colorado, known for its exceptional trails. Participants can choose from three race distances: 50 miles, 55K, and 35K, all of which traverse the stunning landscapes of the Gunnison National Forest. Runners wil..

The 24 Hours Of Palmer Lake will take place in Palmer Lake from Saturday 27 September 2025 to Sunday 28 September 2025.

The Golden Leaf Half Marathon will take place in Aspen on Saturday 27 September 2025. You can run 13 miles.

The West Line Winder is a scenic trail running event held in Buena Vista, Colorado, featuring both 30K and 50K races. Set against the stunning backdrop of the Collegiate Peaks, participants can enjoy a mix of singletrack and forest roads, with significant elevation gain. This event caters to runners..

The Sawatch Ascent is a challenging 50k running event set in the stunning Colorado mountains, taking place on September 28, 2025. Starting and finishing at the base of Mount Princeton, participants will experience a significant elevation gain of 7,000 feet, reaching a high point of 13,150 feet. The..

Rocky's Backyard Ultra is an exciting ultra trail running event held at the YMCA of the Rockies in Estes Park, Colorado. This unique race format challenges participants to complete a 4.167-mile loop every hour until only one runner remains. The course features stunning Rocky Mountain scenery, with a..

The Castle Rock Trail Festival, also known as the liveBIG Run, invites participants to challenge themselves on the scenic trails of Philip S. Miller Park and Ridgeline Open Space. This event caters to a wide range of athletes, offering various race options including a 5K, 10K, half marathon, and a 5..

The Rim to Rim Royal Gorge Races is an exciting running event featuring a 5K road run, an 8-mile trail run, and a half marathon trail run, all set against the stunning backdrop of the Royal Gorge Bridge in Canon City, Colorado. Participants will experience challenging terrains and breathtaking views..

The Bear Chase Race is an endurance festival held at Bear Creek Lake Park in Lakewood, Colorado, featuring a variety of race distances including 100K, 50 Mile, 50K, Half Marathon, 10K, and 5K. Scheduled for October 4-5, 2025, this event is ideal for both novice and experienced trail runners, offerin..

The Above the Clouds Ultra is an annual running event held in Woodland Park, Colorado, featuring a stunning backdrop of fall colors and breathtaking views of Pikes Peak. Participants can choose between a 50K and a 10K race, both of which traverse the scenic trails around Rampart Reservoir. The cours..

The Sage Burner Trail Race takes place in the scenic Hartman Rocks Recreation Area in Gunnison, Colorado, surrounded by stunning views of the Maroon Bells and San Juan Mountains. This challenging event features a variety of terrains, including technical slickrock and smooth singletrack, making it a..

The Bobcat Trail Race, taking place in Palmer Park, Colorado Springs, features a variety of distances including 50K, 25K, 10K, and 5K. This event showcases the park's stunning landscapes, offering participants breathtaking views of the city and Pikes Peak. Originally a Mad Moose Event, it has been t..