Keystone
Trail Running Calendar near Keystone 2026-2027
Explore the top trail runs near Keystone for 2026-2027! We've gathered 19 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
January 2027
A point-to-point uphill event on Vail Mountain where skiers, snowboarders and winter runners climb groomed runs to Eagle's Nest for awards and breakfast.
March 2027
June 2027
A three-day Leadville camp in June 2027 that guides runners over key sections of the Leadville Trail 100 Run with day and night group runs and course briefings.
A three-day high-elevation dirt festival in Alma Colorado featuring mountain bike races, off-road duathlon, trail runs, family kids races and on-site camping.
July 2027
Mountain trail races near Como Colorado at over 10,000 feet with distances from 10.8 miles to 106.2 miles and alpine scenery.
High altitude 50 mile trail run in Leadville on July 10, 2027 with about 8,000 feet of elevation gain; registration opens January 7, 2027.
A 69 mile, three loop mountain endurance near Nederland, Colorado with about 18,099 ft of climbing, three weight categories and mandatory high altitude equipment.
A three day fully supported trail stage race in Leadville, Colorado, offering Full Pint (51 miles) and Half Pint distances.
A single 200 mile loop around Summit County, Colorado with about 40,000 ft of climb, high alpine sections, live GPS tracking and a 109 hour cutoff.
Two Brothers Up and Down in Idaho Springs features steep out and back courses: a 10k with about 1,800 ft ascent and a 5k with about 570 ft.
August 2027
Mountain trail races in Winter Park Colorado featuring 50K, 21K and 10K courses on alpine singletrack with limited fields and aid stations.
Trail races of 5K, 10K and half marathon on Frisco Peninsula trails with single track, dirt roads and a lakeshore finish.
Leadville Trail 10K Run on August 15, 2027 in Leadville CO is a 10 km out and back that uses the first and final 3.1 miles of the LT100 Run course with one aid station.
Trail-focused half marathon and 5K in Fraser, Colorado, on unpaved roads and trails, with chip timing and proceeds benefiting the Shining Stars Foundation.
Historic 100 mile out and back trail race in Leadville on August 21, 2027 with high alpine terrain, Hope Pass, and a lottery Dec 1–15, 2026.
September 2027
Elevation Everest at Winter Park Resort on September 25, 2027 offers multi-lap Half and Full formats with solo and relay options and a 17 hour time cap.