Trail Running calendar near Watsonville 2026-2027

A trail race in the Marin Headlands with 8K, half, 30K and 50K options along coastal single-track and fire roads, marked courses, cupless aid stations, and a 350 runner capacity.

A historic 50k loop from and back to Lake Chabot Marina in Castro Valley with strong aid station support, a half marathon option, plant-based post-race food, and race swag including a shirt, socks, and medal.

A trail running event on Aug. 8, 2026 in Gilroy, California through redwood groves and peak viewpoints. Distances include a 5K, 10K and half marathon with significant elevation gain, and proceeds support youth scholarships.

Bear Creek on August 8, 2026 offers 5K, 10K and a 13.32-mile half marathon in the Briones Regional Park area, with a virtual Remote Runner option. Entry windows and fees are listed for each race.

Experience the trails of Redwood Regional Park in Oakland. Runners can choose from distances ranging from a 50 yard kids dash to a 50K ultramarathon through scenic ridge lines and redwood groves.

Trail races on hilly mixed dirt and single track at Almaden Quicksilver Park with distances from 5K to 50K, aid stations, drop bag service for longer races, and mandatory course markings and cutoffs.

A five kilometer trail run along the Lands End Trail in San Francisco with views of the Golden Gate and the Pacific Ocean. The event lists a $10 entry fee, awards finisher ribbons, and requests no headphones or pets on course.

Oakland Cubs Back2School 5K and Fun Run on August 16, 2026 takes place at The Meadow in Oakland and raises funds for the youth running team and its scholarship programs. Distances include a 5K and a fun run.

A community running event in Felton, California, featuring a 10K through Henry Cowell Redwoods State Park and a 1 mile kids race, beginning and ending at Roaring Camp Railroads; registration includes a pancake breakfast and supports local e..

Trail races of 10K, half marathon and 30K in Henry Cowell Redwoods State Park featuring redwood single-track, a sandy ridge, river crossings, and cupless aid stations.

A map-based 5K and 10K in San Francisco where teams navigate checkpoints and answer multiple-choice questions, followed by refreshments at the finish.

A two loop 4.15 mile cross country race on the fire roads of the UC Santa Cruz campus, starting and finishing at the meadow above the fire station and included in the Pacific Association USATF Grand Prix series.

Trail races at Huddart Park, King's Mountain and Bear Gulch offer measured distances from a 50 yard kids dash to a 50K, with fees listed per distance and registration opening November 11, 2025.

A scenic loop race on Angel Island offering a 10K and a two-loop half marathon with limited entry and required ferry access from Tiburon.

The inaugural Apple City 5k at Pinto Lake County Park in Watsonville on 30 August 2026 offers a 5k on gentle, scenic trails and a kids 1k around the soccer fields. Half the event funds support the Pajaro Valley Education Foundation.

Experience the natural scenery of Mount Diablo State Park through a variety of trail races. Runners can select distances ranging from 4 miles to a 50K with spectacular views of the San Francisco Bay Area.

A September 12, 2026 trail event in Berkeley featuring 10K, half, 35K and 50K courses through Tilden and Wildcat Canyon with chip timing, regular aid stations and a cupless aid policy.

A trail race at Stevens Creek County Park in Cupertino offering a Half Marathon, 11K, and a charity 2.5-mile Lollipop Loop with aid stations and post-race barbecue.

Run through Bishop Ranch and San Ramon in this diverse racing event. Choose between a half marathon, 10k, 5k, or beer mile before enjoying unlimited tastings with your finisher medal.

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.