Trail Running calendar near Watsonville 2026-2027

A full-day trail event at Almaden Quicksilver County Park on May 2, 2026, offering distances from a kids run to a 50K with marked dirt roads, single-track sections, aid stations, drop bag service at the Hacienda start, and free parking.

Experience the scenery of Tilden Regional Park at the Grizzly Peak Trail Run. Choose from various distances including a 50K and marathon starting from the shores of Lake Anza in Berkeley.

Experience the diverse landscapes of Monterey County with courses ranging from a family friendly 1 mile run to a 35K trail race through the Palo Corona Backcountry. Enjoy exclusive access to protected lands and coastal vistas.

Trail ultramarathons in Almaden Quicksilver County Park on May 9 2026, offering a 100K and a 50K with substantial elevation gain, course maps and GPX files, USATF sanctioning, aid stations, volunteer support, swag and a post race party.

Celebrate the 24th year of this community event in Los Altos Hills. Run or walk through the Westwind Community Barn and Byrne Preserve on hilly 5K, 10K, or 1 mile courses.

An annual fundraiser at Shell Ridge Open Space in Walnut Creek supporting Sustainable Contra Costa and its youth program SLIA. Options include a 5K trail run, two 1.4 mile walking activities, and educational talks by local experts.

Trailquake 2026 is a trail event in Saratoga on May 10 offering 5K, 10K and a half marathon through redwoods and pine forest, with local and remote entry options and finisher shirts.

Celebrate Mother's Day on May 10th with a family-friendly run or walk. The event, held at Pinto Lake County Park, features a 1K kids run, 5K, and 10K. Your participation benefits Pajaro Valley Shelter Services.

A charity trail event at Skyline Ridge Open Space Preserve offering 50K, 30K and 10K options, with elevation profiles and route maps provided; all registration proceeds support UCSF cancer research.

A race in El Sobrante on May 16, 2026 offering Half Marathon, 10K and 5K distances plus a remote runner option. Tiered registration fees apply and the event supports the East Bay Regional Parks Campership Program.

A point-to-point Half Marathon on May 16, 2026 in Almaden Quicksilver County Park, running from Mt. Umunhum down to the Hacienda Entrance with 1,909 ft of ascent, marked ribbons, aid stations and a 5.5-hour time limit.

A Spartan obstacle weekend at Toro Park near Salinas on May 30 and 31 2026, featuring a Sprint 5 km with 20 obstacles and a Super 10 km with 25 obstacles. The course runs through wooded trails, rolling hills and coastal views.

Nitro Trail on May 30, 2026 at Point Pinole Regional Shoreline Park features a half marathon, 10K and 5K plus a remote runner option. A hiker start is available for half marathon walkers and the event supports a parks campership program.

Experience a technical trail race through the redwood groves of Joaquin Miller and Redwood Regional parks. Choose from multiple distances ranging from an 8K to a 50K ultra marathon on accurately measured courses.

Experience a scenic run through Coyote Point Recreation Area with a 5K or 10K event supporting mental health. Enjoy a free community wellness fair featuring local health vendors and family friendly activities.

A multi-distance trail event at Calero County Park in San Jose on May 30, 2026, featuring single track, dirt paths and hilly terrain up to 50K, with aid stations, free parking and drop bag support for the 50K.

Toro Park Trail Run in Salinas presents scenic trail routes through rolling golden hills and oak stands. Distances include a 10K, a half marathon and a 50K and the weekend also features Spartan obstacle races.

Global Running Fest at Sports Basement Berkeley on May 31 features free road, trail, and kids runs, brand shoe demos, live music and raffles with over $5,000 in prizes. Beer sales benefit the youth program Running for a Better Oakland.

A community run and expo in San Francisco on June 6, 2026 featuring group runs of 3.2 miles and 4.5 miles, vendor booths, a pancake breakfast, and a raffle with prizes.

A trail event at Almaden-Quicksilver County Park on June 7, 2025 offering distances from 5K to 50K, steep climbs, marked courses, aid stations, and toilet facilities. The 52 mile race is not held in 2025 and is planned to return in 2026.