Trail Running calendar near Monterey County 2025-2026

Crystal Springs Trail Run : January 18, 2026 The Crystal Springs Trail Run takes place at Huddart Park (Werder Shelter), 1100 Kings Mountain Road, Woodside, CA. The event includes the following distances: 8K Half Marathon 35K Marathon 50K..

Run rugged coastal trails at Pacifica Foothills Trail Run in San Pedro Valley Park on Jan 24, 2026 with 30K, half marathon and 10K. Chip timed, cupless race with scenic Montara Mountain climbs and stocked aid stations.

Run scenic trails at Coyote Hills Regional Park in Fremont on Jan 31, 2026, with half marathon, 10K, 5K and remote options. Enjoy marsh and bay views, boardwalks and stocked aid stations plus downloadable GPX files.

Run a scenic and rugged 50.7 mile trail ultramarathon around Fort Ord and Laguna Seca near Monterey, CA, with about 7,080 feet of climbing over two big loops. Expect aid stations, live timing and a custom finisher hat and medal.

Run scenic coastal trails at Fort Ord and Laguna Seca with 10K, 25K and 50K options featuring rolling dunes, dirt tracks and late climbs. Well stocked aid stations, live tracking and finisher medals for a quintessential California trail day..

Take on the Mt. Umunhum Trail Conquest in Almaden Quicksilver Park, offering distances from a kids run to a 50K with scenic climbs and all courses starting and finishing at the Hacienda Entrance. Finishers earn a commemorative medal.

Join Bay Breeze at San Leandro Marina Park on Feb 14, 2026 for a scenic bayside half marathon, 10K or 5K. All finishers receive custom medals and shirts and the race offers chip timing, aid stations and a remote runner option.

Enjoy challenging coastal mountain trails at the Montara Mountain Trail Run in Pacifica, with distances from 10K to 50K plus a Kid's Run. Scenic single track, stocked aid stations, and great trail views make it a must for trail lovers.

Take on scenic trails and rolling climbs at Lake Chabot with distances from 5K to 50K for runners of all levels. Chip timing and stocked aid stations support you, but this cupless event asks that you carry your own bottle.

Enjoy a scenic trail run along the historic Western Pacific route at Quarry Lakes in Fremont on March 28, 2026, with half marathon, 10K, 5K or remote entries. Brazen Racing welcomes runners, walkers and hikers on a mostly flat dirt and grav..

Run the scenic Horseshoe Lake Trail Run at Skyline Ridge in La Honda on April 18, 2026, with distances from 5 mile to 50K and a free kids dash. Expect rolling ridge single track, aid stations, and a friendly festival atmosphere.

Event overview Badger Cove Half Marathon/10K/5K 2026 takes place on April 18, 2026, at Del Valle Regional Park in Livermore, California. The event includes on-site race options at Lake Del Valle and a remote runner option. Hikers and walker..

Trailquake 2026 Trailquake 2026 takes place on May 10, 2026, at 16055 Sanborn Rd, Saratoga, CA. The event offers the following distances: Half marathon 10K 5K The event also includes remote runner and international remote runner options...

Run for Amma: May 16, 2026 at Skyline Ridge Open Space Preserve in Los Gatos. Join the 15th anniversary charity trail run where 100% of registration proceeds support UCSF Julia Carnevale Lab cancer research.

Run Toro Park's rolling golden hills and pastures dotted with oaks during the Spartan Trail weekend in Salinas. Pick a 10K, half marathon or marathon on fast rocky trails under a warm California sun.

Run the 42nd annual Lake Chabot Trail Challenge on June 7, 2026 in Castro Valley, with a scenic hilly half marathon or a 5K featuring ridge line views of Mt Diablo and the Bay. Chip timed races, finisher medals, and on site packet pick up.

Run under coastal redwoods and along stream canyons in Santa Cruz at the San Lorenzo River Trail Run, offering distances from a family kid's dash to a rugged 50K. T shirts for preregistered runners and custom finisher medals await.

Skyline 50K Endurance Run is one of the oldest continuously running 50k races in the United States. The course starts and finishes at Lake Chabot Marina in Castro Valley, California, and follows a large loop through East Bay Regional Parks..

Dick Collins Firetrails at Lake Chabot Marina features 100k, 50 mile, marathon and 30k races across scenic East Bay park trails. Challenging courses, solid aid and sweeping views make it a fall must for trail runners.