Trail Running calendar near Frisco 2025-2026

Join the USCSA Cross Country Ski Racing Festival at Snow Mountain Ranch in Granby Colorado on Jan 24 and 25 2026. Collegiate teams and middle and high school racers take on classic distances and a skate sprint over two action packed days.

Brave the cold at the Freakin Freezin 5K in Denver on Jan 25 at Northfield High School. Run a flat, car free trail 5K or go virtual, earn a custom finisher medal, and get guaranteed swag if you register by Jan 15.

Take on a scenic backcountry snowshoe race near Nederland, Colorado with 18K and 30K routes along the Sourdough Trail. Donation based event requires snowshoes and offers aid at Brainard Lake plus a warming tent and hot drinks at the finish.

Join the Super Sunday 5K on February 8, 2026 for a fun run or walk along the Mary Carter Greenway. Celebrate afterward at Breckenridge Brewery Farmhouse with event swag and 20% off food and drinks.

Ski around Gothic Mountain at the Gothic Mountain Tour in Crested Butte on Feb 15, 2026. Choose a 23.5 mile competitive or 17.85 mile recreational course and support Crested Butte Nordic in this intimate 200 person fundraiser.

Run the scenic Run Through Time trail marathon and half in Salida Colorado, over rugged single track and jeep roads with Arkansas Valley views at 7000 to 9000 feet. Entrants get custom socks and proceeds support local trails and SAR.

Race The Ranch is a scenic snowshoe race at Snow Mountain Ranch in Granby Colorado on April 4 2026, with 50k, 25k and 5k loop options over snowy singletrack and groomed trails. Finishers receive a custom bib, Fractel beanie and engraved Mii..

Join Run the Ranch April 10 and 11, 2026 at Sylvan Dale Guest Ranch in Loveland, Colorado for trail races on private ranch trails, from 5K and 10K to timed 4 hour, 6 hour and 12 hour solo and relay events. Virtual options available.

Run scenic single track trails around Highlands Ranch with options from 5K to 21 mile courses. Enjoy rolling climbs, aid stations, and a cupless race with reusable cups available for purchase at registration.

May 2, 2026: Greenland Trail Races at Greenland Open Space in Larkspur offer distances from 4 miles to 50K plus a virtual option. Scenic dirt trails with Pikes Peak views, aid stations, tech shirts, medals, and a 50K buckle.

Niwot's Challenge is a by invitation only endurance event near Sedalia, Colorado that prizes off trail navigation and self reliance over racing. Limited to 40 entrants, it offers routes up to 100 miles for experienced wilderness runners.

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.

Tackle scenic single track on the slopes of Mt Sopris near Carbondale, Colorado with point to point 10 mile and 25k races finishing at Rock Bottom Ranch in Basalt. Expect steep climbs, flowing descents and lively trail festival energy.

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.

Celebrate Memorial Day with Pyro's Push It Up River Trail Run on May 25 in New Castle, honoring a fallen hero. Choose a family friendly 3.5 km riverside run or the scenic 7.7 km with hilltop climbs, available on site or virtually.

Run the North Fork 50 Mile or 50K on scenic singletrack around Buffalo Creek, Colorado. Choose your distance, enjoy aid stations and a festive finish, and support the North Fork Volunteer Fire Department.

Run the Summits Trail Runs on June 6, 2026 at Granby Ranch Resort, Colorado, with options from a 6 mile to a challenging 50k. Experience single track trails, alpine meadows, and big climbs in a limited field for an intimate mountain race.

Explore high alpine loops at Mueller State Park on June 6 and 7 for the Great Divide Ultra, with distances from 25k to 100 mile and night run options for 25k and 50k. Scenic views, supportive aid, and standout finish swag await.

Run the Crazy Legs 10k+ at Devil's Backbone Open Space in Loveland, Colorado, a scenic looped course through Hidden Valley and Hunter Loop. Expect volunteer staffed aid, local sponsors, and a friendly community vibe; park pass required.

Run scenic dirt trails around Barr Lake State Park on June 13, 2026, with distances from 5K to 50K to suit every trail runner. Enjoy open Front Range views, gentle elevation and aid stations on the longer courses.