Trail Running Calendar California 2025-2026

Santa Clarita Trail Race is a golden-trail running event held in East Walker Ranch on Placerita Canyon Road, Santa Clarita, CA. Brought to you by New Global Adventures, it offers four distances: 5K, 10K, Half Marathon, and 28K. The race win..

The Roosters Backyard Ultra will take place in San Diego on Saturday 1 November 2025.

Take on Rio Del Lago on November 1, 2025 at Beal's Point in Folsom Lake, with 100 mile and 50K options across scenic Sierra foothills. The 100 mile is a 2026 Western States qualifier and rewards finishers with memorable swag and epic views.

Event details The Almaden Hills Trail Run - Fall takes place on November 1, 2025 in San Jose, California. The event is based at Almaden Quicksilver Park in the Almaden Valley area, with a listed location of 19535 Mockingbird Hill Lane. Regi..

Run Griffith Park's fall Trail Races in Los Angeles, choose from 10K to 50K and tackle scenic single track trails up to the Hollywood sign. Friendly aid stations and stunning city views make this a must do autumn trail challenge.

Run a scenic 13.1 mile out and back through Pine Creek Wilderness near Alpine, California along a wide dirt fire road that climbs to a turnaround and returns mostly downhill. Expect good footing, forest views, and a US Forest Service permit..

Celebrate Halloween at ZombieRunner in San Jose's Hellyer Park with races from a kids 50 yard dash to a marathon on the flat Coyote Creek trail. Dress in costume for the contest and enjoy shirts for preregistered runners and finisher medals..

Experience a scenic but challenging single loop in Mount Laguna with Pacific Crest Trail views and climbs around Big Laguna Lake. This volunteer supported trail marathon celebrates community and environmental stewardship.

Run through towering redwoods at the Oakland Tech 5 km fundraiser, with a 1 mile fun run or walk for all levels. Enjoy scenic trails while supporting Oakland Tech PTSA and the school cross country team.

NorCal Backyard Ultra : November 7-10, 2025, Beals Point (Granite Bay, CA) The NorCal Backyard Ultra returns for its third edition at Folsom Lake’s Beals Point in Granite Bay, California. The event features two linked formats: Last Person S..

Challenge yourself at the Rancho Hills Trail Run in Rancho Cañada del Oro Preserve, Morgan Hill, on November 8 2025 with distances from 5K to 50K. Expect steep climbs, oak shaded creek sections, panoramic views, aid stations and a finisher..

Runapalooza in Clovis on Nov 8, 2025 features competitive and fun 5K races, a 2 mile run walk and a virtual option on the Old Town Clovis Trail. Participants receive a shirt and medal, post run celebration and support Beyond The Barracks.

The Rock Cobbler Run at Rio Bravo Ranch on November 8, 2025 is a demanding off road trail race with a limited field of 300. Choose a 26 mile or 13 mile route and enjoy stocked aid stations, swag and post race food.

Run or walk the Tulare Santa Fe Trail A Thon 5k at Live Oak Park for a lively community morning that supports local student scholarships. Finishers get commemorative medals and top runners earn trophies.

Join the Lake Chabot Trail Run in Castro Valley on November 8, 2025 for scenic routes around the reservoir and rolling hills with distances from 8K to 50K plus a kids dash. Pre registered runners get shirts and all finishers earn medals.

Enjoy scenic redwood trails at Huddart Park with distances from 3 Mile to Half Marathon, plus a family Mermaid Dash for kids. Try the festive 6 Hour Challenge to see how many 3 Mile loops you can cover, or join virtually.

Take on Mt Tam's scenic but rugged trails above Stinson Beach with distances from 10K to a challenging 50K. Expect technical singletrack, aid stations, finisher medals and a sold out field with a waitlist for this popular November race.

Run the Catalina Island Half Marathon or 10K in Avalon on November 8, 2025 for a scenic trail experience with climbs, summit ocean views and a finish in town. Family friendly with a Kids Fun Run and a Triple Crown challenge option.

Push your limits at the Sri Chinmoy 6 Hour Race at Miramar Reservoir on Sunday November 9 2025, a USATF sanctioned timed endurance event on scenic lakeside loops. Field is limited to 70 and all finishers earn a medal and certificate.

Spartan Trail Central California at Santa Margarita on November 9 offers 50K, half marathon and 10K over rolling grassy hills, cow pastures and oak lined arroyos. Tackle steep climbs and uneven footing, then enjoy local wine after the race.