California
California Trail Running Calendar 2026-2027
Explore the best trail runs in California for 2026-2027! Our updated list features 413 exciting trail runs across the region. Find your next trail run in California below and join the trail community at these great events!
September 2026
A point-to-point trail run around Emerald Bay of about 7 miles (approximately 11 to 12 km). The single-track course includes granite steps and moderate climbs and finishes at Lester Beach with shuttle service back to the start.
A weekend trail running festival at Mendocino Woodlands Park with 10K, half marathon and timed six and twelve hour formats on a 6 mile loop through ancient redwoods.
A chip-timed one-mile uphill trail race to the top of Pincushion Mountain in Friant, CA, with awards and finisher items. A Mountain Goat edition allows multiple timed ascents within a four-hour window and includes special awards.
Spartan Stadion at Angel Stadium on Sep 12, 2026 features a 5 km course with 20 obstacles plus a kids race and spectator access.
Trail races at Tilden Regional Park in Berkeley offering 50K, 35K, half marathon and 10K with cupless aid stations and a 350 runner capacity.
An outdoor mud obstacle run near Redding, CA, with a just-under 5 km course through fields, hills and creek crossings. The family-oriented event includes vendors, children's activities, food, drinks and event swag.
Trail races at Stevens Creek County Park on September 12 2026 featuring a half marathon, 11K and a charity 2.5 mile Lollipop Loop.
A multi-event festival at Bishop Ranch on September 12, 2026 with races from 0.5 mile to a half marathon, beer tastings, and an afternoon Shindig.
Evening trail event in Los Angeles offering a 5K, relays for teams of 2 or 4, a kid run and free-agent entries with scenic marked courses and race amenities.
A trail running event at Calero County Park offering distances from a kids run to a 50K across single-track and dirt roads, with named aid stations, drop bag support, bib color assignments, and time limits for longer races.
A community 5K run and walk at Fontana Park on September 12, 2026 with a closed mixed paved and unpaved course, on-course water and finish-line refreshments.
Free social trail group run in Newport Coast with an approximately 6.5 mile hilly route and 1,165 feet of vertical gain; trail experience recommended.
Community walk and hike on September 12, 2026 at Harvey Bear Ranch with bus transport, vegetarian meals, and free registration from July 22 to September 13.
Timed sprint orienteering along the Embarcadero in San Diego with Beginner, Intermediate and Advanced courses on September 12, 2026.
Trail 5K and 10K through Bokisch Vineyards in Lodi, CA supporting California Farmland Trust, with a paella brunch, wine for participants over 21, awards by age and gender, and volunteer opportunities.
Trail races at China Camp State Park offering 5K, 10K and a stout half marathon with participant swag included and limited parking.
Experience a scenic multisport event at Crystal Cove State Beach featuring swim legs in the Pacific Ocean and a closed bike course on the Pacific Coast Highway. Choose from triathlon duathlon aquabike or trail run options.
A 40th edition cross country meet in Golden Gate Park with an approximately 4 mile two loop course over grass, dirt, and rolling hills.