California
California Trail Running Calendar 2026-2027
Explore the best trail runs in California for 2026-2027! Our updated list features 387 exciting trail runs across the region. Find your next trail run in California below and join the trail community at these great events!
February 2027
A two-day campus event in Santa Maria featuring a timed 12 Hour race and a separate 5k, supporting a church missions project.
Trail race at Daley Ranch in Escondido offering a 50K two loop course with 6,318 ft total gain and a 13.1 mile loop, three aid stations, and SoCal Ultra Series qualification.
Valentine's Day trail event in Griffith Park with 5k, 10k, 15k and half marathon options on shared dirt trails, aid station, medals and live results.
Trail races in San Pasqual Valley on February 20, 2027 offering 20 Mile, Half Marathon and 10K through vineyards and orange groves with wine tasting at the finish.
Experience the unique Coastal Mountain Habitat and Pacific Coast views at this trail event in Pacifica. With distances from a kids dash to a 50K there are options for many different types of trail runners.
Trail races near Auburn, CA offering 50K, 35K, half marathon and 13K on mostly singletrack; the 50K includes over 6000 feet of climbing and the event is cupless.
Experience scenic lake views and wildflowers at Granite Beach during this trail event featuring a half marathon and 5K. Enjoy well stocked aid stations and earn a finisher medal on the trails of Folsom Lake.
A self supported 51 mile trail loop in San Diego on February 20, 2027 with no aid or course marking and navigation required.
Trail races from 5K to 50K through eucalyptus forests and lakeside trails at Lake Chabot Regional Park near Castro Valley, CA.
A 5 km Spartan obstacle race with 20 obstacles at Dodger Stadium on February 20, 2027, plus kids races and spectator access in Los Angeles.
4 Mile Hill Challenge at Debs Park on 02/20/2027 features a 4 mile run and a 2K youth hill race with a green earth celebration and pet friendly access.
A night trail relay in Griffith Park where teams of two alternate on a one mile loop, using headlamps and handing off a baton at a marked exchange.
A point to point 50 kilometer trail ultramarathon in the Sacramento foothills, running mostly on Cronan Ranch area trails from Magnolia Ranch Trail Head to Folsom Lake. A new half marathon distance has been added and proceeds support Breakthrough T1D..
Trail races at Will Rogers State Historic Park offering looped distance and timed options on a rolling two mile course in Pacific Palisades.
Loop trail event at Goodman Ranch Sycamore Canyon Preserve offering 100K, 50K and Half Marathon options with solo and relay entries.
February 27, 2027 trail races at Tejon Ranch in Lebec CA offering 100k 50k 25k and 11k courses across fire roads with aid stations and a finish festival.
Multiple trail distances on single-track routes near Folsom Lake with aid stations, drop bags, creek crossing, and parking at Falcon Crest.
Experience a trail run across the forest and hills of Angel Island with views of San Francisco and the Golden Gate. Choose from multiple race distances including a youth dash and enjoy a picnic at Ayala Cove.
A family friendly run and walk in Valencia CA featuring 1K, 5K and 10K options plus virtual races. The USATF certified course runs along the South Fork River Trail and proceeds support Students Off And Running with an expo and festive activities.