Colorado
Colorado Trail Running Calendar 2026-2027
Explore the best trail runs in Colorado for 2026-2027! Our updated list features 144 exciting trail runs across the region. Find your next trail run in Colorado below and join the trail community at these great events!
January 2027
A winter out and back 21.6 mile race near Sedalia CO with 2,627 ft of climbing, mandatory gear, aid stations, and a 200 runner field limit.
Uphill, skimo, and boardmo races at Beaver Creek with about 2,050 feet of vertical gain, concluding with awards and breakfast at Hawk's Nest.
A twelve hour uphill ski challenge in Glenwood Springs on the Sun King route, raced solo or in teams with mandatory headlamp, helmet, and downhill skis.
A downtown to trail Nordic ski event in Crested Butte with multiple distances, a costume contest, prize purses, and a weekend skiathlon for all ages.
A chip timed 5K on the frozen Rio Grande in Alamosa with ice themed awards and a backup pond course when ice is unsafe.
A 2.1 mile winter uphill from the Eagle Bahn Gondola to Eagle's Nest on Jan 31, 2027, gaining about 2,250 feet for skiers, snowboarders and winter runners.
February 2027
Winter trail event at Cheyenne Mountain State Park with timed ultras and distance races across multi loop courses and a 225 runner combined capacity.
Backcountry snowshoe race near Brainard Lake in Nederland, Colorado, offering 18K and 30K routes with mandatory snowshoes and on-course aid.
A winter bike rally and trail run in Lyons, Colorado offering multiple run and ride distances plus an afterparty with food, music and saunas.
A Nordic ski event circling Gothic Mountain with competitive and recreational distances, limited to 200 racers and held as a fundraiser for Crested Butte Nordic.
Free community races at Catfish Flats, Chatfield State Park on Feb 20, 2027, offering 5K, 10K, and 15.5K with a weather-triggered virtual option.
March 2027
An open-registration uphill race from Telluride to San Sophia Ridge where participants use skis, splitboards, snowshoes, or microspikes; proceeds support avalanche education.
Trail marathon, half marathon and 2 mile run near Salida CO on single track and dirt roads at 7000 to 9000 feet with time cutoffs and limited entry.
A winter trail event at Vail Nordic Center on March 20, 2027 with snowshoe and running races, a kids fun run, aid stations and an afterparty.