Trail Running calendar near Gold Creek 2025-2026

The Western Pacific Marathon event, held at Quarry Lakes Regional Recreation Area in Fremont, California, offers runners a choice of half marathon, 10K, and 5K distances. The course is mostly flat, following the historic Western Pacific Trail, which was originally used in the 1800s to transport grav..

Set in the Marin Headlands, the Golden Gate Headlands Marathon, Half Marathon & 10K starts and finishes at the Historic Gunnery Range in Rodeo Valley, Mill Valley, California. The course traverses scenic single-track trails and fire roads, offering panoramic views of San Francisco Bay, the Golden Ga..

Diablo Trails Challenge is a trail-running event held at 1700 Castle Rock Road, Walnut Creek, CA, in support of Save Mount Diablo. The race offers multiple distances to suit all levels: 50K, half marathon, 10K, and 5K, plus a Remote Runner option. The course traverses Mount Diablo’s open-space trail..

Romancing the Island Half Marathon & 10K takes place at Angel Island State Park, Belvedere Tiburon, California. The course is a hilly loop around the island: the half marathon runs the loop twice, the 10K once. Runners enjoy panoramic views of the Golden Gate Bridge, San Francisco, Alcatraz, the Eas..

Badger Cove Half Marathon/10K/5K 2026 is held at Del Valle Regional Park in Delvalle, Livermore, California. The emerald hills of Lake Del Valle form the backdrop for three races: a half marathon, 10K, and a 5K, with a virtually hill-free 5K option when conditions permit. The event, hosted by Brazen..

Mt Tam Wild Boar Half Marathon & 10K takes place in Mt Tamalpais State Park, Mill Valley, California. The coastal ridge course blends rolling single-track with paved sections, offering views of the Pacific Ocean, Bolinas Lagoon, and Marin County watershed. Runners traverse Ridgecrest Blvd along Boli..

The Miwok 100K ultramarathon is staged in Marin County, California, with the start/finish in the town of Stinson Beach, near San Francisco. The race covers 100 kilometers on single-track trails and dirt roads, featuring 11,800 feet of elevation gain, a cup-less policy since 2013. Runners are treated..

The 2026 Stinson Beach/Muir Woods Marathon, Half Marathon & 7 Mile is a challenging trail event launching from Stinson Beach Park in California. Runners follow the Dipsea Trail into Muir Woods, ascending to Steep Ravine where a wooden ladder and natural stairways test movement among towering redwood..

Trailquake 2026 is Brazen Racing’s trail event at Sanborn Park, 16055 Sanborn Rd., Saratoga, CA. It offers 5K, 10K, and half-marathon distances. Runners traverse redwoods and pines on spectacular single-track trails, with ascents to peaks that reward you with panoramic views.The course suits all lev..

Run for Amma is an annual charity running event held at Skyline Ridge Open Space Preserve in Los Gatos, California, celebrating its 15th anniversary in 2026. The event offers three race distances: a challenging 50K with 5,266 feet of elevation gain, a 30K with 3,629 feet of elevation gain, and a 10K..

Wildcat 2026, held at 3800 Clark Road in El Sobrante, California, offers a Half Marathon, 10K, and 5K. The page highlights spectacular 360-degree views of the Bay Area from the course. Specific route details aren’t described, but the event is run by Brazen Racing and takes place within East Bay Regi..

Nitro Trail 2026 is a trail-running event held at Point Pinole Regional Shoreline Park, 5551 Giant Highway, San Pablo, California 94806. It offers three distances: a half marathon, 10K, and 5K, appealing to a range of runners and walkers. The event is branded with an energetic theme, described as an..

Toro Park Trail Run, part of the Monterey Spartan Trail weekend, takes place in Salinas, California. Runners explore Toro Park’s scenic Bay Area terrain, featuring rolling golden hills, sparse coast live oaks for brief shade, and smooth trails that roll up and down through pastures and arroyos. Dist..

Bay Area 100 is a 100-mile ultramarathon held in Oakland, California. The race is associated with a location at 12500 Campus Drive in the Bay Area, indicating the event’s hub in Oakland. The official site bayarea100.com provides registration details, noting that registration opens on October 1, 2025..

Skyline 50K Endurance Run is one of the oldest continuously running 50k races in the United States. The course starts and finishes at Lake Chabot Marina in Castro Valley, California, and follows a large loop through East Bay Regional Parks out to Skyline Gate. The event is popular with first-time ul..