Trail Running calendar near Leadville 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..

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.

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.

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.

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.

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 Memorial Day trail event in New Castle, Colorado, honoring a fallen hero with riverfront routes. Options include 3.5 km and 7.7 km courses with both in person and virtual entries.

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.

A 10K trail race through Elk Meadow Open Space Park following Pioneer Trail clockwise around the meadow, with downhill sections along Highway 74 and wooded singletrack at the mountain base. The race is cup free and has no aid stations.

A 5K trail run at the Leadville National Fish Hatchery with a cross country style route through subalpine forest around Evergreen Lakes and lower Rock Creek. Adults $15; youth 17 and under free.

Ragnar Trail Individual Colorado in Snowmass Village on June 5-6, 2026 offers single-loop and timed 6 hour and 24 hour trail races near alpine scenery. Ragnar Village provides camping, showers, food trucks and festival amenities.

A team trail relay in Snowmass Village on June 5-6, 2026 featuring mountain loops, camping at Ragnar Village, and team formats for four or eight runners. The course totals 120 miles with significant elevation gain and weekend on site amenit..

Experience the Rocky Mountains at Granby Ranch Resort with distances ranging from 6 miles to a 14 hour elevation challenge. Runners navigate single track trails through aspen groves and alpine meadows with views of the mountain range.