Trail Running calendar near Littleton 2026-2027

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.

The Freakin Freezin 5K - Denver will take place in Civic Center on Sunday 25 January 2026. You can run 5 kilometers.

The Sourdough Snowshoe Race in Nederland, CO is a donation based backcountry event offering 18K and 30K routes where snowshoes are required. Enjoy rugged alpine scenery with a warming tent and hot drinks at the finish.

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.

Stories Trail Runs at Cheyenne Mountain State Park offer scenic, challenging multi loop trail races and timed ultras on Feb 21 and 22, 2026. Choose distance races or 6 hour and 15 hour timed options in a small field for rugged Colorado trai..

Race The Ranch is a snowshoe race at Snow Mountain Ranch near Granby, Colorado on April 4, 2026, offering 5k, 25k and 50k looped courses over scenic groomed and singletrack snow trails. Finishers receive a custom beanie and engraved Miir ca..

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.

Mountain Ridge Trail Race on Saturday April 11 2026 in Highlands Ranch Colorado starts and finishes at Mountain Ridge Middle School. Choose 21 mile, half marathon, 10 km or 5 km on mostly dirt single track with rolling climbs.

Take on the scenic Poudre River Trail April 11 and 12 2026 in Northern Colorado with 50 and 100 mile solo and relay options. Stocked aid stations, finisher swag, belt buckles for solos and a lively post race party await.

Join the Rattler Trail Race in Palmer Park, Colorado Springs, where singletrack trails wind through sandstone bluffs and offer panoramic views of the city and Pikes Peak. Choose from 50K, 25K, 10K or 5K on technical but runnable terrain.

Run the Greenland Trail Races in Larkspur, Colorado on May 2, 2026 with 50K, 25K, 8 Mile and 4 Mile options and the 2026 RRCA National 50K Championship. Scenic dirt trails wind through ponds, oak hills and offer Pikes Peak views.

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.

Run among the iconic red rock spires of Garden of the Gods with distances from 5K to a Double Take or 9.5 mile course. Traffic free roads and trails promise stunning views of Pikes Peak and formations like Siamese Twins and Balanced Rock.

Valkyrie Trail Race is a trail event for women at Cheyenne Mountain State Park with distances from 4 miles to 50K on scenic singletrack, technical rock sections, and mountain views. Pick a distance and enjoy a mountain trail challenge.

Take on Quad Rock 25 or 50 mile trail races through Lory State Park and Horsetooth Mountain Park near Fort Collins. Rugged singletrack, big climbs and full aid stations make this scenic loop a true mountain challenge.

Tackle scenic high alpine trails around Rampart Reservoir on May 16 with distances from 15K up to an epic 55 mile test of endurance. Expect rugged singletrack, big elevation gains, aid stations, a 60K shuttle and finisher awards.

Samson's Revenge at the YMCA of the Rockies in Estes Park offers 10k, 27k and 55k looped trail races with a steep climb to Bible Point. Enjoy flowing single track, on course aid and a custom Fractel hat plus wool finisher socks.

Run the North Fork 50 Ultras in Buffalo Creek, Colorado on May 30, 2026, with 50 mile and 50K options along scenic soft surface singletrack through ponderosa pine and granite. Enjoy challenging trails while supporting local nonprofits.

Hit alpine single track at Granby Ranch in Granby, Colorado on June 6, 2026 with options from 6 Mile to 50k and a unique Elevation Challenge. Expect rugged scenery, well stocked aid stations, and a lively resort finish.