California
California Trail Running Calendar 2026-2027
Explore the best trail runs in California for 2026-2027! Our updated list features 370 exciting trail runs across the region. Find your next trail run in California below and join the trail community at these great events!
October 2027
A two-day obstacle event for people and their dogs on a 20 acre course in Phelan, CA, featuring over 20 obstacles plus an after party with music and vendors.
Trail run in Cool, California on October 16, 2027 offering 5k, 10k and half marathon distances to benefit local youth programs.
Trail running at Vasquez Rocks Natural Park on October 16, 2027, offering 13.9 mile, 15K, 10K and 5K courses with separate entry fees.
An hourly 4.16 miles loop at Beals Point, Granite Bay, where runners repeat laps until one remains, with a 12 hour Mini option available.
Trail races around Jenkinson Lake at Sly Park offer distances from 5K to 50K plus relay teams, on course aid stations, and onsite food and facilities.
Trail running in Cheeseboro Canyon with 50k, half marathon and 10k options across singletrack, fire roads and varied canyon scenery.
Trail races at Wildwood Canyon State Park near Yucaipa, CA, featuring a 6K and an eight hour lap-based endurance challenge on a 3.7 mile loop.
November 2027
A 69 miles out and back on the Backbone Trail above Malibu with nearly 13,000 ft of climbing, solo self-sufficient categories and time based Dog Tag awards.
Trail races at Rancho Cañada del Oro on November 13, 2027, offering 5K to 50K over very hilly single track with aid stations and limited parking.
Trail races at Darrington Trail Head in Folsom Lake offering 5K, 10K, 18M and 36M on rocky single track with aid stations and a 10 hour cutoff.