Trail Running calendar near Beaver Creek 2025-2026

Run scenic trails around the Flat Irons in Louisville, CO on November 15, 2025, with 5K, 10K and half marathon options. Mostly dirt out and back courses with friendly aid stations and a cupless format for a true fall trail experience.

Challenge yourself in the Thumbs Up Vertical in Estes Park, an 8 hour timed ascent limited to 30 runners. Each 540 ft steep scenic single track lap earns a poker chip, with milestone patches and a prize for the overall winner.

Test yourself on high elevation winter trails at Staunton State Park with 50k, 16 mile, and 8 mile distances. Limited to 250 runners, this December race offers hearty aid stations and a unique finisher award for all finishers.

Take on the Summit for Life in Aspen on December 6, 2025 with options to race uphill, ride the scenic gondola, or join virtually. Celebrate afterward at the Sundeck with food, live music and awards.

Join collegiate and junior skiers for the USCSA Cross Country Ski Racing Festival in Granby, Colorado at Snow Mountain Ranch. Two days of classic and skate racing promise fast snow, college points and gear giveaways in a lively community at..

Push your limits at the 12 Hours of Sunlight in Glenwood Springs, a 12 hour skin up and ski down endurance challenge on 1.3 mile laps with huge vertical gain per lap. Teams and individuals enjoy fuel stations, post race food and gear prizes..

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.

Glide around Gothic Mountain in Crested Butte at a scenic cross country ski race on February 15, 2026 with competitive and recreational courses. Proceeds support Crested Butte Nordic and local rescue teams.

Join the 21st Run Through Time in Salida, Colorado on March 14, 2026 for scenic high elevation trail races: marathon, half, and 2 mile. All registered runners get custom socks and proceeds benefit local trails and search and rescue.

Race The Ranch at Snow Mountain Ranch in Granby Colorado on April 4, 2026 is a scenic snowshoe race with distances up to 50k on singletrack and groomed trails. Tackle challenging loops, enjoy on course aid, and earn a custom finisher mug.

Take on the Collegiate Peaks Trail Run in Buena Vista, Colorado on May 2, 2026, a rugged mountain course along the Arkansas River. Choose 25 miles or 50 miles and tackle big elevation changes on scenic single track and jeep trails.

Run the 50 Mile or 50K in Buffalo Creek Colorado on scenic singletrack through ponderosa pines, granite outcrops and burn areas. Proceeds support North Fork Volunteer Fire Department and finishers get food, drinks and a commemorative award.

Run high in the Colorado Rockies at Granby Ranch Resort on June 6, 2026 with distances from 6 Mile to 50k and a standout Elevation Challenge of repeated looped climbs. Expect single track trails, alpine meadows, stocked aid stations, and sw..

Run high alpine trails above Leadville, Colorado on June 27, 2026, with a rugged marathon and a shorter Heavy Half reaching Mosquito Pass at 13,185 feet. Expect old mining roads, stunning mountain views and a true high country challenge.

Race in the Clouds at Alma Cemetery Meadow is a high country weekend of mountain bike, trail and off road duathlon racing at 10,600 feet. Multiple distances, youth events and on site camping create a true alpine festival vibe.

Silverheels Trail Runs in Como Colorado July 10 and 11 offers 10 mile to 100 mile races on high alpine singletrack through historic mining country. Expect thin air above 10,000 feet and strict qualifying for the longest races.

Experience Leadville's Silver Rush weekend in July 2026 with a rugged 50 mile out and back, a 15 mile option and a juniors 5K, plus a combined run and bike challenge. Enjoy high alpine views, big elevation and well stocked aid.

Grin & Bear It brings rugged trail running and mountain biking to downtown Crested Butte with scenic high alpine loops and steep climbs. Pick a longer mountain route or a shorter out and back, then refuel with a post race brunch at the Nord..

High Lonesome 100 is a rugged 100 mile mountain loop in Colorado, crossing five alpine passes and sections of the Continental Divide and Colorado Trail. Mid July racing delivers big climbs, sweeping alpine views, and a true endurance test.

Three days of high alpine trail running around Leadville, Colorado crossing the continental divide from Hope Pass to Red Cliff with stunning fourteener views. Choose Full Pint or Half Pint stages, enjoy on site camp life with live bands, sh..