Trail Running calendar near Conifer 2026-2027

A four‑race August trail series at Lory State Park featuring 5k to 12k courses, chip timed results and series awards, with postrace food and beverage and vintage race shirts available to registrants.

Trail races on the Miller Park and Ridgeline trails in Castle Rock offering 50K, 25K, 10K and 5K with aid stations, drop bag support, chip timing and live split tracking; proceeds support local open space and trail efforts.

A family-focused trail event at Arapahoe County Fairgrounds on August 29, 2026, featuring a 5K run, a family 5K walk and a kids 1 mile run. The day includes dog demonstrations, a costume contest, auctions, vendors and a pancake breakfast.

A mountain trail race at Arapahoe Basin on September 5, 2026 covering *9.4 miles* and *2,211 ft* of ascent, with Sport, Expert and Pro divisions, a 700 runner cap, on course aid stations and category prizes.

A remembrance running event in Longmont, Colorado on September 11 and 12, 2026 featuring loop course races from 5K to 100 miles and a virtual option. The event includes aid stations, participant shirts, finisher awards, and on site food for..

Ned Ned Run in Nederland Colorado features a trail Half Marathon, a 10K on dirt roads and single track, and a 5K out and back near Old Town. The event is family friendly, allows leashed dogs in the 5K, and encourages costumes.

Snow Mountain Ranch in Granby Colorado features trail races from 5K to 50KM across dirt trails with varied elevation and mountain views. Loop courses include aid stations, drop bag access, onsite lodging, and a pacer option for the 50KM fin..

A 13.5 mile trail half around Lory State Park near Fort Collins featuring about 2,000 feet of climb, mainly singletrack terrain and a free one mile kids race. Post race breakfast and awards are held at the Soldier Canyon Picnic Area.

Point-to-point trail race in Empire, Colorado with 50K and 22K options, both on dirt single-track and reaching above 13,000 feet. Prior ultra experience is required for the 50K and cut-off times are enforced.

The Trail Sisters Women's Half Marathon will take place in Buena Vista on Saturday 12 September 2026. You can run between 10 and 21 kilometers.

Take on the scenic trails of North Table Mountain Park in Golden and support BeyondHome’s work helping families build stable, self sufficient futures. Enjoy community vibes, stunning views, and artisan awards for top finishers.

Test yourself on the iconic Pikes Peak Ascent, a 13.3 mile run from Manitou Springs to the summit with breathtaking views and huge elevation gain. A bucket list challenge for runners who crave high altitude adventure.

A 26.2 mile out-and-back marathon from Manitou Springs to the summit of Pikes Peak and back, held on September 20, 2026, with 7,834 ft of elevation gain and open to runners aged 16 and older.

A trail running event in Buena Vista, Colorado offering 50k and 30k courses on high elevation singletrack and forest roads with views of the Collegiate Peaks. The event is organized by Freestone Endurance and hosted alongside 14er Fest.

A 24-hour loop endurance run on a 0.82 mile course atop the Palmer Divide at 7,240 feet. Prizes are awarded by distance and the first ten runners to reach 100 miles receive a buckle; a portion of registration fees supports local parks.

The Estes Epic will take place in Estes Park from Saturday 26 September 2026 to Sunday 27 September 2026. You can run between 21 and 50 kilometers.

A high alpine 50k in Nathrop, Colorado on September 27, 2026. The 33 mile course gains about 7,000 feet, runs largely on singletrack and the Colorado Trail, and includes three aid stations and an 11 hour cutoff.

The The Bear Chase will take place in Morrison from Saturday 3 October 2026 to Sunday 4 October 2026. You can run between 3 and 62 miles.

Run Wildcat Mountain near Littleton with 10 mile, 10K and kids races on rolling dirt trails and wide mountain views. Finishers get a dry fit shirt, medal, pancake breakfast and post race beers.

Mountain trail event near Pikes Peak offering 50K and 10K courses around Rampart Reservoir with multiple aid stations, crew access for the 50K, packet pickup, and on course food options.