Trail Running calendar near Winter Park 2025-2026

Experience alpine single track through meadows and forests at Granby Ranch Resort on June 6, 2026, with distances from 6 mile to 50k. Test your limits in the Elevation Challenge where repeated loops add to your total climbed elevation.

Run scenic ridgelines and singletrack at Devil's Backbone in the Crazy Legs 10k+ Trail Run, then celebrate with awards at Loveland Aleworks. Entry includes a hat with a random patch and aid near mile 3, and parking passes are required.

Run scenic dirt trails around Barr Lake State Park, with continuous lake and Front Range views. Distances range from a 5K up to a challenging 50K, with looped courses, aid stations on longer laps and a cupless race policy.

Run high alpine trails above Leadville, Colorado on June 27, 2026, with a rugged marathon and a shorter Heavy Half reaching Mosquito Pass at 13,185 feet. Expect old mining roads, stunning mountain views and a true high country challenge.

Enjoy scenic treetop trails and Horsetooth Reservoir views at the Timberview Trail Run in Lory State Park, with 5K, 5 Mile and 10 Mile options for all abilities. This USATF event is 100% plant based and finishes with pancakes and craft beer..

Race in the Clouds at Alma Cemetery Meadow is a high country weekend of mountain bike, trail and off road duathlon racing at 10,600 feet. Multiple distances, youth events and on site camping create a true alpine festival vibe.

Chase the Moon is an overnight endurance run on scenic Highlands Ranch trails offering 12 Hour, 6 Hour, 3 Hour, 50K and relay options for all abilities. Expect well marked loops, aid stations, glow in the dark finisher items and a festive n..

High altitude trail running in Como, Colorado on July 10 and 11, 2026 with distances from 10 mile to 100 mile through alpine meadows, old mining sites and rugged single track. Expect big climbs, remote aid and sweeping mountain views.

Experience Leadville's Silver Rush weekend in July 2026 with a rugged 50 mile out and back, a 15 mile option and a juniors 5K, plus a combined run and bike challenge. Enjoy high alpine views, big elevation and well stocked aid.

Three days of high alpine trail running around Leadville, Colorado crossing the continental divide from Hope Pass to Red Cliff with stunning fourteener views. Choose Full Pint or Half Pint stages, enjoy on site camp life with live bands, sh..

Experience high alpine trails from Gould Colorado in the Never Summer range with 100 km and 60 km options. Rugged singletrack, big climbs and alpine lakes await for a true mountain adventure.

Take on the Summit 200, a breathtaking 200 mile loop around Summit County, Colorado that climbs above 12,700 feet and delivers about 40,000 feet of gain. Expect remote high altitude single track, sparse aid and an epic endurance challenge.

Join the Wild West Relay, a scenic point to point 200 miles across Colorado from Fort Collins to Steamboat Springs. Run solo or with teams from 1 up to 12 people as you tackle mountain passes, open roads and big western views.

Sheep Mountain Trail Runs in Fairplay Colorado offers 50 mile, 50k and half marathon courses across technical singletrack and alpine roads averaging over 10,600 ft. Expect sweeping mountain views, tough terrain and variable August weather.

Take on Aspen Backcountry with 50K, marathon or heavy half routes from Rio Grande Park, mostly on scenic dirt trails and high alpine terrain. After the finish enjoy the Duck Derby festival with live music, food and local vendors.

Run the Lory Summer Trail Series at Lory State Park in Fort Collins this August with four midweek trail races from a fast 5k to a testing 12k. Perfect for newcomers and speed seekers, with post race pizza, drinks, and series awards.

Run the Rockies Trail in Frisco, Colorado is a scenic 5k, 10k and half marathon on single track and dirt roads with views of Dillon Reservoir and the Ten Mile Range and a lakeshore finish. The half gets new single track in 2026.

The Leadville Trail 100 Run is a legendary 100 mile ultramarathon in the Colorado Rockies that tests runners at high altitude with climbs to Hope Pass and sweeping mountain trails. Iconic belt buckles await finishers who make the 25 or 30 h..

Run mountain trails above 8,700 feet in Fraser, Colorado with a scenic half marathon or 5K on dirt roads. Aid stations and community packet pick up precede an event that benefits the Shining Stars Foundation.

Choose from 50K, 25K, 10K or 5K on rolling singletrack and multiuse trails with sweeping views at Philip S. Miller Park in Castle Rock, Colorado. Portions of proceeds support Castle Rock open space and local charities.