Trail Running calendar near Ripon 2026-2027

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.

A community fundraising race in Oakland that supports the Oakland Cubs youth running team and its scholarship programs. The event features a Kids Fun Run and 5K trail runs at 3594 Sanborn Dr on August 16, 2026.

A community 10K and a 1 mile kids race through the redwoods in Felton, California, starting and finishing at Roaring Camp Railroads. The event supports the local business and community association and includes a pancake breakfast.

Trail races of 10K, half marathon and 30K through Henry Cowell Redwoods State Park with single track, sand ridge and river crossings. Aid stations are spaced every five to six miles and the event is cupless.

A map-based navigation event in Fillmore and Japantown on August 22, 2026 where individuals or teams of up to five follow a custom map to 20 to 30 checkpoints across 5K and 10K courses, then enjoy refreshments at the finish.

A multi-distance trail event on August 22, 2026 around Jenkinson Lake with a 100-runner daily cap, starts at Scales Parking Lot and most races finish at the Waterfall Trailhead, with aid stations and a $5 day use parking fee.

A trail event at Granite Beach on August 23, 2026 offering 5K and 10K courses for runners and their dogs, with finisher medals and dog bandanas; aid stations provide drinks and gels and dogs have their own water.

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.

Obstacle-course weekend at Mahon Ranch near Elk Grove on Aug 29-30, 2026, featuring Sprint (5 km), Super (10 km), a kids race, spectator access, team entries, and service member discounts.

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 loop trail race around Angel Island near Tiburon offering a 10K single loop and a half marathon that repeats the loop. The course has panoramic Bay Area views, a 400 runner limit, and a mandatory ferry to the island.

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.

Multi-distance trail event at Mount Diablo offering races from 4 miles to a 50K plus a free kids dash. Mountainous routes have significant elevation gain, marked courses, staffed aid stations, and a cupless hydration policy.

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 running at Tilden Regional Park in Berkeley with 50K, 35K, half marathon, and 10K options; aid stations appear every 5 to 7 miles and the event is cupless so participants carry their own bottle or reusable cup.

Trail races at Stevens Creek Reservoir in Cupertino on September 12, 2026 include a half marathon, an 11K, and a charity 2.5 mile Lollipop Loop. Courses use shaded single track and ridge views with aid stations and a post race BBQ.

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.

Trail runs at Granite Beach on Folsom Lake with new 10 mile and 5K courses, aid stations, age group awards, a finisher beer glass and a postrace meal.