Trail Running calendar near Breckenridge 2026-2027

A trail event in Highlands Ranch offering 21 mile, half marathon, 10 km and 5 km distances on mostly dirt and single-track trails. Courses are out and back, include aid stations on longer distances, and use Mountain Ridge Middle School as t..

Falcon 50 at the USAF Academy in Colorado Springs offers trail and road races including a 50 mile ultra. The event is open to DoD ID cardholders and online registration closes April 18.

Trail races at Greenland Open Space in Larkspur, Colorado offer 4 mile, 8 mile, 25K and 50K distances on dirt double-track trails with aid stations and championship designation for the 50K.

Niwot's Challenge is an invitation only, navigation focused ultradistance trial near Sedalia, Colorado, emphasizing off trail travel, limited aid, and self reliance across options from about 24 to 100 miles.

Experience the red rocks of Garden of the Gods Park in Colorado Springs during this traffic free event. Choose between road and trail options ranging from 5K to 9.5 miles with stunning views of Pikes Peak.

Collegiate Peaks Trail Run in Buena Vista, Colorado offers 25-mile and 50-mile loop options on single-track and jeep trails. Each loop starts near 8,000 feet and includes over 3,500 feet of elevation gain and loss.

Experience the 45th annual run along the scenic High Line Canal in Centennial. Enjoy chip timed 5K or 10K races followed by a pancake breakfast and beer garden.

Join the Aurora community for an untimed 1k fun run or a timed 5k race ending with an optional muddy obstacle course. This rain or shine event welcomes runners and walkers of all ages.

Experience a women focused trail event at Cheyenne Mountain State Park. Choose from several distances ranging from 4 miles to 50K featuring winding singletrack and pine shaded canyons in Colorado Springs.

A community trail event in Kittredge featuring a 7.4 mile route through private land and O'Fallon canyon trails, plus a kids run where children run one lap per year. Manual timing, staggered cohort starts, and a post-race park gathering.

Experience the natural beauty of Mueller State Park with various trail distances from a 10k to 12 hour timed ultra events. Choose between traditional distance loops or a unique randomized format determined by colorful draws.

Multiple trail distances run from Buffalo Lodge in Colorado Springs with courses around Rampart Reservoir and Rampart Range Road, high points near 9,500 feet, limited onsite parking and a shuttle for the point to point 60K.

Trail races in Eagle, Colorado on May 16, 2026 offering a **14K** and **6K** on mostly single-track with notable elevation gain, finish-line food, aid stations with Skratch hydration, and awards plus an afterparty at Capitol Public House.

Experience the beauty of the Roaring Fork Valley with a point-to-point trail race from Carbondale to Basalt. Choose between 10-mile and 28k distances featuring iconic single track trails and a festive finish at Rock Bottom Ranch.

Samson's Revenge is a trail race at the YMCA of the Rockies in Estes Park offering 50k, 25k and 10k options. The course uses a roughly 10 km loop with a prominent Bible Point ascent and two aid stations.

The Farish Trail Race takes place on May 23, 2026 at the Farish Recreation Area in Woodland Park, Colorado. Participants can run a half marathon, 10K, 5K, or a free kids' one-mile event. The first 200 finishers get a special hat.

Test your endurance at this Golden Colorado event following the classic backyard format with 4.17 mile laps every hour. Support the Sun Valley Kitchen and Community Center while pushing for your personal best distance.

Celebrate Memorial Day weekend with the Spirit Trail Race in Buena Vista, Colorado, a scenic trail event with marathon, half marathon and 9k options. Start in town square, enjoy Paddlefest fun, and support local nonprofits.

A mountain trail ultramarathon in Buffalo Creek, Colorado, offering **50 Mile** and **50K** singletrack courses on soft surfaces with aid stations, marked trails, and finisher awards.

A 20K run clockwise around Turquoise Lake near Leadville, CO, mixing 6.5 miles of hilly paved road with 5.5 miles of single track trail, with proceeds supporting Leadville youth athletics and a nominal day use parking fee.