Trail Running calendar near San Rafael 2026-2027

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.

Test your endurance at Almaden Quicksilver County Park with 50 km or 100 km trail races. These USATF sanctioned events offer significant elevation gain and the 100 km distance serves as a Western States 100 qualifier.

A 13.1-mile point-to-point half marathon on May 9, 2026 through Napa Valley vineyard roads, finishing in Yountville with a Wine Village featuring local wine, food, music, and winery-hosted aid stations.

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.

Experience the lush redwood landscapes of Saratoga at Trailquake 2026. Choose between 5K, 10K, or half marathon distances on forested trails with options to run, walk, or join remotely.

Multiple trail distances through Skyline Wilderness Park in Napa, featuring Rim Rock climbs and valley views, touchless aid stations, and a cupless policy that requires runners to carry their own hydration.

A charity trail event at Skyline Ridge Open Space Preserve offering 50K, 30K and 10K distances. All registration proceeds go to the UCSF Julia Carnevale Lab for cancer research.

The inaugural Rim Rock 50 Mile Trail Challenge explores Napa's wild trails. Runners will tackle a two-loop course through Skyline Park and the new Suscol Headwaters. This cupless event offers a 50-mile solo or relay option with a 13-hour cu..

Experience 360 degree views of the Bay Area at Wildcat 2026 in El Sobrante. This scenic event features a Half Marathon, 10K, and 5K as well as a remote participation option.

A 13 mile point to point trail race through Almaden Quicksilver Park and Sierra Azul Open Space Preserve near San Jose. Transportation to the start is provided and race day registration with bib pick up is available.

Mud Factor Sacramento is a 5K mud and obstacle run at the 300 acre Mahon Ranch in Elk Grove on May 17, 2026. The event includes adult and KIDZ family waves, a festival area with paid spectator access, and required signed waivers.

Trail races at China Camp State Park near San Rafael include Half Marathon, 10K, and 5K on single track and open trails with views of Mt. Tam and San Pablo Bay. Aid stations offer gels, snacks, and hydration; capacity is 275.

Experience trail running at Point Pinole Regional Shoreline Park in San Pablo. Choose between half marathon, 10K, or 5K distances on a historic site once home to TNT factories.

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.

These trail runs explore the beautiful Sonoma Coast State Park. The courses traverse a scenic ridgeline with ocean views and summit Red Hill. The event will return in 2027 with a planned new location in Monte Rio.

Trail race at Calero County Park in San Jose offering distances from a kids mile to a 50K. Routes feature single track, hills, marked courses and aid stations, and all finishers receive a commemorative medal.

A one-day community running festival in San Francisco featuring a social group run with two casual route options, an expo with vendors and demos, a pancake breakfast, and a raffle; the event is cupless and no dogs are allowed except service..

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.

Experience the 42nd annual Lake Chabot Trail Challenge featuring a scenic half marathon loop and a paved 5K run. Enjoy views of the San Francisco Bay and Mt Diablo while competing for medals on chip timed courses.