California
California Trail Running Calendar 2026-2027
Explore the best trail runs in California for 2026-2027! Our updated list features 364 exciting trail runs across the region. Find your next trail run in California below and join the trail community at these great events!
November 2026
A Veterans Day running event in Clovis offering 5K competitive and fun runs, a 2 Mile walk, and a virtual 5K hosted from California Health Sciences University.
Trail races on private Rancho San Fernando Rey in the Santa Ynez Valley featuring mountains, vineyards, creek crossings and oak trees.
A multi-format run on Cahuilla Indian Reservation in Anza featuring 100 mile, fixed-time and shorter races, with proceeds supporting the tribe's Youth and Family Committee.
A second annual trail run along the empty Kaweah Lake Bottom in Three Rivers, California with 5K and 10K options, race amenities, and proceeds supporting St. Anthony Retreat Center.
Trail half-marathon and 10K in Avalon on Catalina Island with ocean summit views, climbs, a kids 1K, and a Triple Crown entry option.
A community run in Griffith Park offering 4K pet friendly and 5K human only divisions with team entries, with proceeds supporting Run for Paws.
Fixed-time trail runs at O'Neill Regional Park on a roughly 2.75-mile wooded loop with 8, 6, and 3 hour options and a central aid station.
Experience a flat and fast trail race through the scenic Quarry Lakes Regional Recreation Area in Fremont. Choose from a USATF certified half marathon, 10K, or 5K while enjoying views along the Alameda Creek Trail.
Map-based trail scramble in Harvey West Park on Nov 14, 2026 where teams of 1 to 5 collect points in 2 hour or 4 hour formats.
Trail event in Yucaipa on November 14, 2026 offering 21 mile, 10 mile, and 4 mile courses while supporting the Crafton Hills Open Space Conservancy.
Third edition backyard race at Rohr Park in the San Diego area on Nov 14, 2026; smooth hard-packed trail, dog-friendly, with car camping available.
Trailsgiving at Elysian Park features 5K, 10K, 15K and half marathon trail loops with finisher medals, live results and free photos on November 14, 2026.
Trail races in Ripon offering 5 km, 10 km and 13.1 miles in November with a focus on community and local sponsors.
Trail runs in Auburn, CA on November 14, 2026 offering 5K, 10K, 13.4 mile and 50K routes with aid stations, an event shirt, and proceeds to Auburn Trails Alliance.
A 3.01 mile summit course on Mount Konocti in Lake County, California, gaining 1,625 ft to a Wright Peak finish.
Community 5K and 10K walk and run through McKay Community Forest in Eureka with a Community Connections Fair and food vendors.
Trail cross country races of 1K, 3K and 5K at SLO Ranch and City Farm in San Luis Obispo with prizes and participant SWAG.
Orienteering in Presidio Park on November 14, 2026 with Motala Beginner, Intermediate and Advanced courses, electronic punching, a two hour time limit and a 75 person entry limit.
Free trail run in Aptos hosted by Fleet Feet and WildBody with a short 3 to 4 mile route, post-run treats and a chiropractor Q and A.
The 30th Patagonia Salmon Run in Ventura on November 15, 2026 is a 3.14-mile event supporting Santa Barbara Channelkeeper with a zero-waste focus and limited online registration.