Castle Rock
Trail Running Calendar near Castle Rock 2026-2027
Explore the top trail runs near Castle Rock for 2026-2027! We've gathered 26 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
November 2026
An incline challenge at Philip S. Miller Park in Castle Rock with an optional goal of three climbs of Challenge Hill within a two hour session.
December 2026
A winter trail race at Staunton State Park offering 50k, 16 mile and 8 mile courses with on-course aid stations and a combined field limit of 250 runners.
January 2027
A winter 21.6 mile out and back to Devil's Head near Sedalia, CO, run on the closed Rampart Range Road with aid stations, mandatory gear, and a 200-runner field.
February 2027
March 2027
Winter endurance laps on a marked 4.6 mile loop at Staunton State Park with 3, 6, 12 and 24 hour formats and fundraising for air quality nonprofits.
April 2027
A backyard ultra on a 4.167 mile dirt loop at Greenland Open Space, Larkspur CO, where runners repeat hourly yards until one runner finishes an extra loop alone.
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 ultramarathon in Buffalo Creek, Colorado offering 50 Mile and 50K courses on 100% soft-surface singletrack with staffed aid stations and limited crew access.
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.
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.
August 2027
Trail run at Rampart Reservoir on August 14, 2027 with 8 miles and 16 miles options, a 150 runner limit, water only aid stations, and limited parking.
September 2027