Trail Running calendar near Byers 2025-2026

Run the Colleen De Reuck XC Classic in Boulder on November 1, 2025 at Harlow Platts Community Park. Youth and open cross country races celebrate local distance legends and offer scenic fall competition as part of the Boulder XC series.

Run against the clock on a fully supported one mile dirt loop in Fort Collins, Colorado, choosing 6, 12, or 24 hour solo or relay formats. Enjoy an overnight challenge chasing distances from a marathon to an ultra in a friendly setting.

Run the Kokopelli XC Invitational in Colorado Springs, featuring youth races and a competitive 5 km Open and Masters race. Part of the Colorado Long Distance Grand Prix Series with a $10,000 prize purse and club championship.

Take on the 17th annual HRCA Backcountry Wilderness Half Marathon in Lone Tree, Colorado on November 8, 2025. Enjoy a scenic 13.1 mile trail loop through Highlands Ranch backcountry with classic November conditions, plus a pancake breakfast..

BINGO! Trail Party at May Farms in Byers on Nov 8, 2025 mixes looped trail running with a bingo twist where runners draw chips each loop to earn a finish before the 9:00 PM cutoff. Farm trails, one aid station and on site camping.

Located in Colorado Springs’ North Cheyenne Cañon Park, the Canya Cañon Trail Race & Family Hike offers a 4-mile trail race along the Columbine Trail, starting at the Starsmore Visitor & Nature Center (2120 S Cheyenne Canyon Rd). The course..

Hit the trails at Louisville Community Park for the 12th annual Louisville Trail Race, with 5K, 10K and half marathon options on scenic dirt trails. Enjoy live split tracking, post race festivities and a cupless sustainability focus.

Take on the Colorado Cold Rush Ultra in Colorado Springs on Nov 22, 2025 with 50k, half marathon or 10k on scenic Bear Creek and High Drive trails. Runners get a race shirt, BOCO beanie, personalized bib, finisher award and post race food.

Run the Sawmill Trail Runs at Staunton State Park on Dec 6 with 50k, 16 mile, and 8 mile options through alpine meadows and granite cliffs. High elevation, a limited field, and well stocked aid stations promise a scenic, challenging winter..

Tackle the Sourdough Snowshoe Race in Nederland CO on Jan 31 2026, a donation based backcountry challenge where snowshoes are required for the full route. Choose 18K or 30K and warm up at the finish with hot drinks and a warming tent.

Hit the trails at Cheyenne Mountain State Park for the Stories Trail Runs on Feb 21 to 22, 2026. Choose timed ultras or distance races on scenic multi loop courses with camping and a lively aid station at Swift Puma Campground.

Run the Ranch is a weekend trail festival at Sylvan Dale Guest Ranch in Loveland, CO, featuring 5K, 10K and timed 4, 6 and 12 hour events plus relays and virtual options. Enjoy varied ranch terrain, on course support, meal tickets for entra..

Hit the scenic Great Western Trail in Severance on April 18, 2026 with 5K, 10K, half marathon and kids fun run options for every level. Enjoy chip timing, finisher shirt and medal, plus post race food and beer while supporting local nonprof..

Run scenic singletrack at the Rattler Trail Race in Palmer Park, Colorado Springs, with options from 5K to 50K that pass sandstone bluffs and offer Pikes Peak views. Technical but rewarding trails suit a range of abilities.

Mountain Ridge Trail Race in Highlands Ranch, Colorado on April 18, 2026 offers 5K to 21 mile routes on scenic dirt single track and bike path. Enjoy challenging climbs, friendly finish vibes and a spring trail experience for all levels.

Run scenic trails with Pikes Peak views at the Greenland Trail Races in Larkspur on May 2, 2026. Options from 4 miles to the RRCA National 50K Championship include chip timing, tech shirts, finisher medals and a 50K buckle.

Take 5 in the Garden invites runners to explore Garden of the Gods in Colorado Springs with road and trail distances. Enjoy traffic free courses past red rock formations and views of snow capped Pikes Peak.

Niwot's Challenge in Sedalia on May 2, 2026 is invitation and acceptance only, not a race, testing rugged off trail navigation and self sufficiency across punishing loops with massive elevation gain. Traditional entries rely on map and comp..

Quad Rock 25 and 50 deliver rugged singletrack and big Colorado climbs around Fort Collins, offering a 25 mile single loop or 50 mile double loop with roughly 5,500 or 11,000 ft of gain. Entries are capped and registration opens Dec 15, 202..

Join the Valkyrie Trail Race on May 9, 2026 at Cheyenne Mountain State Park for a women focused day of stunning singletrack, rocky descents and springtime views. Distances from short runs up to 50K ultramarathon welcome all levels.