Trail Running Calendar California 2026-2027

We have found 320 Trailruns in California. Check below where and when you can find the races.

Trail running event at Almaden Quicksilver County Park offering distances from a kids run to a 50K. Longer courses enter Sierra Azul and include summits of Bald Mountain or Mt. Umunhum.

A half-marathon and 7k through Rancho Sierra Vista and Point Mugu State Park with creek crossings, single-track climbs, ocean views, finisher medal and tee, free race photos, post-race food and sports massage.

Trail runs at Granite Beach beside Folsom Lake offering 10 mile and 5K courses with multiple aid stations, finisher medals, and age group and overall awards. Pre-sale shirts are available.

Trail races of 10K, 25K and 50K through Fort Ord National Monument near Monterey with largely dirt trails, aid stations, cupless policy, course markings, and a 50K time limit of 8.5 hours.

A 50 mile trail race at Fort Ord National Monument featuring a 35 mile loop and a 15 mile loop, varied trail surfaces, multiple aid stations and live timing. The event is cupless and has a 14.5 hour course time limit.

UTMB Index

Trail races at Rodeo Beach in Sausalito on February 7, 2026, offering distances from 8K through 50K plus a free kids dash. The event is sold out and features coastal and Marin Headlands views including the Golden Gate Bridge.

Join the JW House Hope Run in Los Gatos for scenic 5K and 10K routes around Vasona Lake, perfect for runners, walkers and strollers. Proceeds support JW House to help keep families together during medical emergencies.

A trail event in the Red Hills Recreation Area near Jamestown, California on February 7, 2026, offering two tenish distances. Routes run on technical terrain with water crossings, mud, and a single aid station.

A free, social trail run on Saturday, February 7, 2026 in Newport Coast and Laguna Coast Wilderness Park. The route is about 7.5 miles with roughly 1,290 ft of elevation gain and finishes with snacks and a raffle.

An annual DPMR snowshoe race in Truckee on February 8, 2026 offering 5K and 10K distances at Prosser OHV. The event normally requires snowshoes, has a $25 entry fee, member discounts, and limited loaner snowshoes.

A cross country event in Fresno featuring an 8K race, a 2 mile walk and kids races. The off-road course includes water pits, muddy sections, hills and hay obstacles, and 8K age group awards are offered.

The Ranch 50K is a trail race in Escondido's Daley Ranch area on February 14, 2026, featuring a 50K and a Half Marathon. Both courses start and finish at Dixon Lake and include multiple aid stations. Participants receive race swag, and fini..

Scenic races at San Leandro Marina on February 14, 2026, with half marathon, 10K, 5K and a remote runner option. The mostly flat bayside course stays close to the water and offers views of San Francisco and the Bay.

Celebrate Valentine’s Day at Farmer Bob's Live, Love, Run 5K winding through orange orchards on a picturesque citrus ranch in Ivanhoe. Chip timed with a custom finisher medal, fresh picked oranges and a lively DJ celebration.

Celebrate the Lunar New Year with a bold, self supported trail loop in San Diego. This unmarked 51 mile course around PQ Canyon demands navigation and self reliance, rewarding runners with scenic trails and a true backcountry challenge.

Celebrate Valentine’s Day with a scenic trail run in Griffith Park Los Angeles. Choose from 5k, 10k, 15k or half marathon loops and enjoy aid stations, a finisher medal, free photos and post race snacks.

FOURmidable is a trail running event in Auburn, California offering 50K, 35.5K, half marathon and 13K races. Prize money is funded by runner donations matched up to $3,000, plus a $500 bonus for a 50K course-record break.

Trail race in San Pasqual Valley with 20 mile, half marathon and 10K options; the longer courses summit Raptor Ridge twice and most of the terrain is single track. Finish line features a free wine tasting with local vineyards.

Redtail Ridge at Lake Chabot on February 21, 2026 features 5K to 50K trail races on mixed dirt trails, fire roads and some paved sections. The event is chip timed, cupless, and limited to 500 runners.

Trail runs at Granite Beach on well marked single track with scenic lake views and stocked aid stations. Distances include a 5K and a half marathon, with finisher medals, race shirts for preorder and age group awards.