Trail Running calendar near Frisco 2026-2027

Join the Super Sunday 5K on February 8, 2026 in Littleton for a scenic run along the Mary Carter Greenway. Celebrate at a post race party at Breckenridge Brewery Farmhouse with 20% off food and drinks and community fun.

A two-person partner race on Virginia Canyon road in Idaho Springs, CO, held on Valentine’s Day. Runners each complete a roughly 12-mile out-and-back; team time is the sum of both individual times and multiple awards are offered.

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..

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.

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..

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 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.

Point to point trail races in Carbondale, Colorado offering a 10 mile and a 25k on the Up & Over single track. The weekend includes a film festival, shuttle service from Carbondale, and a post race gathering at Rock Bottom Ranch.

Trail trail race at the YMCA of the Rockies in Estes Park offering 10k, 27k and 55k looped routes. The course is mostly single track with a steep ascent at Bible Point and includes a day pass, a custom hat and wool finisher socks.

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 Grand River Park, New Castle, offering a family friendly 3.5 km riverside route and a longer 7.7 km route over scenic hilltops, with matching virtual distance options.

Two trail ultras in Buffalo Creek Colorado on May 30, 2026 covering singletrack through pine forest and burn areas. The event offers 50 Mile and 50K options, staffed aid stations, course markings, and a post race festival with awards.

A 20K route around Turquoise Lake in Leadville, CO, running clockwise from Matchless Boat Ramp with paved and single track sections. Adult entry is $40 and under 18 run free. Parking is limited and a day use fee may apply.

The Summits Trail Runs offer a variety of distances on mountain trails at Granby Ranch Resort in Colorado. Courses feature single-track paths through forests, meadows, and aspen groves. This event focuses on community and the natural beauty..

A weekend trail running festival in Mueller State Park offering 100 mile, 100k, 50k and 25k looped races on smooth single and double track. The event includes night running options, crew access at aid stations, shuttled parking for shorter..

A 10k-plus trail run at Devils Backbone Open Space in Loveland, CO, on a looped, flour-marked course with one aid station passed twice. Parking requires a park pass, finishers get a placing token, and awards follow at Loveland Aleworks.

A trail race at Barr Lake State Park in Brighton, CO offering 50K, 30K, half, 15K and 5K on flat, 100% dirt courses with loop and out-and-back formats. The event uses a cupless policy and includes state park parking fees.