Douglas County
Trail Running Calendar near Douglas County 2026-2027
Explore the top trail runs near Douglas County for 2026-2027! We've gathered 24 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
A 13.1 mile trail race through the Highlands Ranch Backcountry Wilderness in Douglas County with cash prizes and participant race amenities including a shirt, medal, and pancake breakfast.
November 2026
A six hour timed loop event at Sandstone Ranch Open Space in Larkspur CO with 8 mile loops, aid every four miles and finisher medals.
December 2026
Mountain trail race at Staunton State Park offering 50k, 16 mile and 8 mile courses, time limits, shuttle parking and variable December weather.
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.
April 2027
A backyard ultra at Greenland Open Space in Larkspur, CO, run as repeated 4.167 mile (6.706 km) loops until one runner completes a final solo loop and wins.
Trail races in Highlands Ranch on April 10, 2027 offering 21 mile, half marathon, 10 km and 5 km courses on mostly dirt single-track with rolling hills.
May 2027
Trail races at Mueller State Park from 10k to marathon plus two 12 hour timed events that use colored ball draws to set loop sequences. All courses are single and double track with no pavement and feature an aid station.
Trail races at Farish Recreation Area in Woodland Park, CO feature a Half Marathon, 10K, 5K and a free 1 mile kids run, with awards and packet pickup options.
Trail ultramarathon in Buffalo Creek, Colorado offering 50 Mile and 50K on soft singletrack with aid stations, limited crew access and live tracking.
June 2027
An overnight full moon trail event in Highlands Ranch offering 12 hour solo and team relays on a 10.3 mile loop with aid stations and required headlamps.
July 2027
Experience a historic 12.6 mile mountain race ascending Pikes Peak from Manitou Springs to Barr Camp and back through the Pike National Forest.
August 2027
Trail races at Rampart Reservoir offering 16 mile and 8 mile courses, shuttle service from Merit Academy, limited parking at Rainbow Gulch, horseshoe finisher medals and a membership raffle.
Trail marathon and half at Staunton State Park in Colorado featuring mostly singletrack, significant elevation gain, marked courses, stocked aid stations, and limited fields.
September 2027