Trail Running calendar near Empire 2025-2026

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 demanding ultramarathon held in Colorado's Front Range, inspired by the Barkley Marathons. This grassroots event, limited to 40 participants, emphasizes navigation skills as runners traverse mostly off-trail terrain using only a map and compass. The challenge includes various..

The Mountain Ridge Trail Race, held in Highlands Ranch, Colorado, offers scenic trail running options for all levels, including 5K, 10K, half marathon, and 21-mile courses. Set on the Douglas County East-West Regional Trail, the race features rolling hills, dirt and single-track trails, and manageab..

The Quad Rock 50 and 25 Mile Trail Races, organized by Gnar Runners, will take place on May 10, 2025, in Lory State Park and Horsetooth Mountain Park, near Fort Collins, Colorado. This challenging event features a scenic course with significant elevation gains—over 5,500 feet for the 25-mile race an..

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 will take place in Colorado Springs on Saturday 17 May 2025. You can run between 15 and 55 miles.

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 Weld Your Mettle Running Festival is a four-day event taking place in Eaton, Colorado, from May 23 to May 26, 2025. It offers a variety of running challenges suitable for all levels, including a 7K run, ruck, and timed events ranging from 3 to 48 hours, either solo or as part of a relay team. Pa..

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 in a non-stop race, fosteri..

The Spirit Trail Race is a running event held in Buena Vista during Memorial Day Weekend, featuring a marathon, half-marathon, and 9K race. Participants start at the South Main Town Square area, with race times beginning early in the morning. The event supports local organizations such as the Buena..

The 3rd Latino Ultra Nature Adventure (LUNA) is a unique trail running event scheduled for May 31, 2025, in Boulder, Colorado. This culturally relevant and inclusive event features various distances, including 5km, 7 miles, 15 miles, and a marathon. LUNA aims to promote physical and mental health th..

The Reuter-Hess Trail Incline is a unique running event held in Parker, Colorado, featuring a challenging 10k course and a 1-mile kids' race. The race employs a handicap start system, allowing participants of varying ages and genders to compete on an equal footing. The course includes a steep inclin..

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 North Fork 50 Mile and 50K ultramarathon takes place in the scenic Colorado mountains near Buffalo Creek. The course features nearly all singletrack trails, with some double track sections, traversing diverse landscapes including burn areas from a 1996 wildfire, ponderosa pines, and granite rock..

The Luna (Latino Ultra Nature Adventure) is an inclusive, culturally relevant ultra running event held in Boulder, Colorado. Now in its third year, it offers various race distances, including 5km, 7 miles, 15 miles, and a marathon, all taking place on May 31, 2025. The event emphasizes human-nature..