Trail Running calendar near Breckenridge 2025-2026

The Can't Be Mad Running Festival, taking place in Erie, CO, offers a variety of running events including a 10K, 5K, a 3-hour timed event, and a Kid's 1K, with both in-person and virtual options available. The course features a flat and fast off-road cross-country style route with scenic views of th..

The Rock Hawk Trail Races, part of the Bear Chase Race Series, will take place on April 19, 2025, at Phillip S. Miller Park in Castle Rock, Colorado. This event features multiple race distances, including 50K, 25K, 10K, and 5K, catering to both novice and experienced trail runners. The scenic trails..

The Cheyenne Mountain Trail Race, taking place in Colorado Springs, features a variety of distances including 50K, 25K, 7 Miler, and 4 Miler. Set against the stunning backdrop of Cheyenne Mountain State Park, participants will navigate scenic trails that include grassy meadows and wooded areas. The..

Take 5 in the Garden is an exciting running event held in the picturesque Garden of the Gods in Colorado Springs, CO. Participants can choose between a road race or a trail race, with options including a 5K, 5 Miler, and a 9.5-mile course. The event features closed roads, allowing runners to enjoy t..

The Collegiate Peaks Trail Run, celebrating its 35th anniversary, is a renowned trail running event held in Buena Vista, Colorado. Participants can choose between two challenging distances: 25 miles and 50 miles. Established in 1991, the race features a scenic course that follows single-track and je..

The Greenland Trail Races, set in southern Douglas County, Colorado, features a variety of running events including a 50K ultramarathon, 25K, 8M, and 4M races. Participants can enjoy scenic trails with Pikes Peak as a backdrop, aiming for personal bests on soft dirt paths. The event includes chip ti..

The Falcon 50 is an annual race series held on May 3, 2025, at the USAF Academy in Colorado Springs, featuring five race options: 50 Miler, Marathon, Military Heavy, Half Marathon, and Military Half-Heavy. Established in 2011, the event showcases scenic and challenging terrain, primarily on dirt tra..

Niwot's Challenge is a challenging ultramarathon held in Colorado's Front Range, designed for experienced runners. Modeled after the Barkley Marathons, this grassroots event features a secretive course that requires participants to navigate primarily off-trail using a map and compass. The event incl..

The Mountain Ridge Trail Race, taking place in Highlands Ranch, Colorado, offers a variety of distances including a 21-mile, half-marathon, 10K, and 5K, all set against the stunning backdrop of the front range. The event features 100% dirt and single-track trails, providing a mix of manageable eleva..

Samson's Revenge is an exciting running event taking place at the YMCA of the Rockies in Estes Park, CO, featuring three race distances: 55k, 27k, and 10k. The course offers a mix of fast single track trails and a challenging ascent to Bible Point, where participants can compete for the King of the..

The Ram Party Trail Runs, scheduled for May 17, 2025, in Colorado Springs, CO, offers a variety of race distances including 55 Mile, 60K, 50K, 24K, and 15K. Set against the stunning backdrop of Rampart Reservoir and Pikes Peak, participants can enjoy breathtaking views while challenging themselves o..

The Endure Trail Runs, organized by the Human Potential Running Series, takes place at Mueller State Park in Divide, Colorado. This unique event features a variety of races, including a 10k, Half Marathon, and timed challenges of 12 and 24 hours. Participants in the 12-Hour and 24-Hour events will d..

The Dynafit Boneyard Boogie 5K/13K will take place in Eagle on Saturday 17 May 2025. You can run between 6 and 14 kilometers.

The Mt Sopris Run-Off is an exciting trail running event held in Carbondale, CO, featuring two race distances: 10 miles and 25k. Scheduled for May 18, 2025, the race takes participants along the scenic "Up & Over" single track trail, starting at Flying Dog Ranch and finishing at Rock Bottom Ranch. T..

The Ol' College Try 24 Hour Ultra is Denver's inaugural 24-hour ultra race, organized by Rise Again Running Events in collaboration with Tall Tales Ranch. Scheduled for May 24-25, 2025, at Auraria Campus, this event invites runners of all abilities to challenge themselves and achieve personal bests..

The Spirit Trail Race is an exciting running event held in Buena Vista, Colorado, during Memorial Day Weekend. Participants can choose from various race distances, including a marathon, half-marathon, and 9k. The race promotes community engagement by donating proceeds to local organizations such as..

The Reuter-Hess Trail Run is a unique running event held in Parker, Colorado, featuring a challenging 10k course and a 1-mile kids' race. The race is designed with staggered starts based on age and gender, allowing participants of all ages a fair chance to compete. The course includes a mix of smoot..

The North Fork 50 Mile/50K is an ultramarathon set in the picturesque Colorado mountains, just southwest of Denver. This event features a challenging course that is entirely on soft surfaces, primarily consisting of singletrack trails, with some sections of double track. Runners will experience dive..

The Leadville Turquoise Lake 20K is a scenic running event set around the picturesque Turquoise Lake in Leadville, Colorado. Participants will experience breathtaking mountain views as they navigate a course that combines 6.5 miles of hilly paved roads with 5.5 miles of single-track dirt trails. The..

The Fish Hatchery 5K Trail Run is an exciting running event set in the picturesque surroundings of the Leadville National Fish Hatchery in Colorado. Participants will enjoy a scenic cross-country course that meanders through subalpine forests and around the beautiful Evergreen Lakes and lower Rock C..