Trail Running Calendar Colorado 2026-2027

The Gothic Mountain Tour offers a unique circumnavigation of Gothic Mountain with two distances: a 23.5-mile competitive race and a 17.85-mile recreational tour. This event supports Crested Butte Nordic and other local organizations. Regist..

A two-day winter trail event at Cheyenne Mountain State Park featuring timed multi-loop ultras, fixed-distance trail races, a single main aid/staging area, and a combined 225-runner capacity.

The Pine Needle Langlauf is a demanding freestyle Nordic ski race in Durango. It offers multiple distances and features significant climbs and descents. The event concludes with live music and prizes.

Uncle Clyde's Run & Slide is a unique winter relay on a snow tubing hill at Purgatory Resort. Teams of two or three race up the hill carrying a tube, slide down, and hand off to a teammate. It’s a capped-entry event with categories for all..

Trail marathon, half marathon and 2 mile run near Salida, Colorado featuring dirt roads and hilly single track at 7000 to 9000 feet. Field sizes and time limits apply; finish amenities include a hot meal and custom race socks.

Race the Ranch is a unique snowshoe running event near Granby, Colorado. It offers 50K, 25K, and 5K distances across groomed and backcountry trails. All participants must carry snowshoes and receive a beanie and camp mug at the finish.

A three-day trail running festival in Fruita, Colorado with four distances on desert singletrack and slickrock. The 100K serves as a Western States qualifier and select races award UTMB Index Running Stones.

Trail races on private ranch trails at Sylvan Dale Guest Ranch in Loveland, Colorado over two days in April 2026. Events range from 5K and 10K to 4, 6 and 12 hour timed races plus relay and virtual options.

Mountain Ridge Trail Race in Highlands Ranch, CO features 21 mile, half marathon, 10 km and 5 km courses on mostly dirt single track with rolling hills and front range views. The event uses cupless aid stations and finishes at Mountain Ridg..

A trail ultramarathon on April 12, 2026 along the Poudre River Trail offering 50 mile and 100 mile solo and relay options with stocked aid stations and a post race celebration in Greeley.

Event Overview The Rattler Trail Race takes place in Palmer Park in Colorado Springs, Colorado. It offers four distances: 5K, 10K, 25K, and 50K. The 50K distance consists of two loops of the 25K course. Course Details The event is designed..

Join the inaugural Earth Day 5K on the Animas River Trail in Durango. This fun run/walk supports Compañeros, an organization serving immigrants. It's a Zero Waste event encouraging participants to bring their own water.

On April 25, 2026 Royal Gorge Groove in Cañon City offers trail races from 5K to 50K along the rim of the Royal Gorge about 900 feet above the Arkansas River, with aid stations, camping and nearby lodging options.

Four trail distances plus a virtual option at Greenland Open Space near Larkspur on May 2, 2026, including the 2026 RRCA National 50K Championship. Dirt trails and looped circuits offer Pikes Peak views, aid stations, chip timing and on-sit..

An invitation only endurance trial in Colorado focused on off trail navigation, map and compass skills, and limited aid. The field is capped at 40 and applications open in a short window in January 2026.

Take 5 in the Garden offers road and trail race options through Garden of the Gods Park in Colorado Springs on May 2, 2026. Courses run on roads closed to traffic and pass iconic rock formations with views of Pikes Peak.

The Pilgrimage is a 150-hour timed ultra in Colorado's high desert. Its unique format features five different loops, with route order changing each journey, emphasizing solitude and self-reliance. The event offers crewed and uncrewed divisi..

Take on the Collegiate Peaks Trail Run in Buena Vista Colorado with 25 or 50 mile options through stunning high country. Mark the 36th anniversary with a memorable mountain trail challenge.

A women focused trail event at Cheyenne Mountain State Park on May 9, 2026 offering distances from 4 Mile to 50K across meadow, singletrack, and technical pine forest terrain.

A two-day outdoor festival in Fruita, CO featuring a trail half marathon, mountain bike and gravel 50K races, guided canyoneering, clinics, kids races, and reserved camping at the North Fruita Desert Trailhead.