Trail Running calendar near Stinson Beach 2026-2027

A scenic loop trail race around Angel Island with a single-loop 10K and a half marathon that runs the loop twice; ferry transport is required and included in race pricing, and the field is limited to 400 participants.

Explore the scenic trails of Huddart Park and Bear Gulch at this multi distance trail event. Runners can choose from distances ranging from 8K to 50K through redwood forests and lush ferns.

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.

Experience the trails of China Camp State Park with a selection of distances including a 5K 10K and Half Marathon. Participants enjoy a post race festival with beer steins custom medals and local snacks.

Trail races in Tilden Regional Park offering 50K, 35K, half marathon and 10K distances with aid stations every 5 to 7 miles, a cupless format, limited field of 350, technical shirts, and finish awards across multiple categories.

Trail races at Stevens Creek Reservoir include a Half Marathon, an 11K and a 2.5 mile charity Lollipop Loop with shaded single track, ridge views, aid stations and a capped field for longer distances.

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.

Experience the rugged beauty of Las Trampas Wilderness at Rocky Ridge 2026. Choose from 5K, 10K, or Half Marathon distances featuring significant hills and expansive vistas in San Ramon.

Dick Collins Firetrails in Castro Valley features a 100k, a 50-mile race, and a marathon on Lake Chabot park trails. The event is UTMB Index and the 50-mile race counts toward the Pacific USATF Grand Prix.

JP's Backyard Ultra/Hike is a final edition event in Napa's Skyline Wilderness Park. Participants run or hike a 3.3-mile loop, choosing their own distance up to 33 miles. This free event is a fundraiser, with a suggested donation supporting..

Trail running in shaded redwood forest at Sanborn County Park on September 27 2026, with 10K, half marathon and 50K options; steep singletrack, shuttle parking, chip timing and specific mandatory gear for the 50K.

Experience a trail half marathon on San Bruno Mountain featuring 2,400 feet of elevation gain and stunning views. Enjoy a scenic route with 93 percent trail coverage followed by a post race meal and finishers medal.

Experience the coastal bluffs of Santa Cruz at Wilder Ranch State Park. This event offers trail races on flat packed dirt with scenic views of Monterey Bay to support local youth and trail programs.

Test your endurance at Lake Merced in San Francisco with a scenic 4.5 mile loop course. Choose between a standard run or tackle ultra marathon distances including the 50K and 50 mile events.

A trail race at Almaden Quicksilver County Park with distances from 5K to 50K. Courses are out-and-back, marked with colored ribbons, include aid stations and toilets, and the longer races reach Bald Mountain and Mt. Umunhum.

Experience the beauty of California wine country at the Sonoma Fall Classic. This event offers challenging singletrack trails and majestic lake views across distances ranging from a marathon to a 100 mile ultramarathon.

Experience the trails of Walnut Creek at the Diablo Summit Stomp 2026 featuring 30K, Half Marathon, 10K, and 5K courses. Walkers and hikers are welcome to join this trail event at Castle Rock Road.

Run through the lush single track trails and babbling streams of Bothe Napa Valley State Park. This exclusive event offers marathon, half marathon, and 10K distances for a maximum of 300 participants.

Celebrate Halloween with a trail race through San Jose Hellyer County Park. Choose from distances including 5K 10K Half Marathon and Marathon with costume prizes and certified courses.

Trail races in Almaden Quicksilver Park from 5K to 50K over hilly dirt roads and single-track, with two staffed aid stations, drop-bag service for longer distances, and a finisher medal for all participants.