Trail Running calendar near Yountville 2026-2027

An unconventional half marathon in Auburn that blends running with extreme ironing, requiring participants to iron a button up shirt at multiple public locations while remaining self supported and documenting each stop on video.

Trail races of 10K, half marathon and 30K run from Stinson Beach into Mt Tam and Muir Woods, featuring steep climbs, technical single-track, marked courses, aid stations, and chip timing.

Timed trail races at Point Pinole on July 25, 2026 offer 12 hour, 6 hour and 3 hour formats on a 3.37 mile loop with shoreline views and eucalyptus groves. Solo runners and two or three person teams are accepted, and entry includes an all d..

Trail running at Calero County Park with multiple distances across single track and dirt paths, significant climbs, aid stations and free parking at the park.

A trail race in Auburn, California on July 26, 2026 offering 10.5 mile and 5.9 mile courses on single track, canal, dirt and some paved surfaces. Post race food and beer are provided to finishers aged 21 or older.

A multi-distance trail event at Rodeo Beach in the Marin Headlands offering 50K, 30K, Half Marathon and 8K courses with coastal single track, significant elevation, ocean views, varied aid stations, and chip timing.

A historic trail 50K and half marathon around Lake Chabot in Castro Valley, featuring a large loop through East Bay Regional Parks with substantial climbing. Finishers receive a shirt, socks, and a medal, and podium awards are presented.

A time based trail event at Skyline Wilderness Park in Napa where runners cover as much distance as possible in 3, 6, or 12 hour events on a 4.16 mile loop with significant climbing; cupless and chip timed, 500 runner capacity.

Trail races in Lafayette on August 8 2026 include a half marathon, 10K and 5K through Briones Regional Park. All courses have hills and use electronic chip timing; finishers receive medals and shirts.

A 50K ultramarathon in Marin County on August 15, 2026, running iconic Coastal, Miwok, Matt Davis and Dipsea trails with about 6,600 feet of elevation gain. Part of the USATF PA Grand Prix and offering a $10,000 podium purse.

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 is a community trail event in Oakland on August 16, 2026 with a kids fun run and two 5K categories. Proceeds support the youth running team and scholarship programs.

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

Tackle the legendary Double Dipsea, a 13.7-mile out-and-back on the historic Dipsea Trail from Stinson Beach. This unique race features a handicapped start, putting all runners on a single-track course of constant passing. Experience the hi..

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.

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.