Trail Running calendar near Pacifica 2025-2026

The Muir Woods Marathon, organized by Enviro Sports, is a trail running event held near Stinson Beach, California. It offers multiple race distances including a full marathon, half marathon, and a 7-mile run. The course features scenic trails through the iconic Muir Woods and surrounding natural lan..

The Trailquake will take place in Saratoga on Sunday 10 May 2026. You can run between 5 and 13 miles.

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..

Rim Rock 50 Mile Trail Challenge is the inaugural ultramarathon in Napa Valley, California, staged at Skyline Wilderness Park. The event offers 50‑mile solo or two‑person relay formats. The course comprises two roughly 26‑mile loops weaving through Skyline Wilderness Park, the Napa Open Space Preser..

The Napa Wilderness Trail Runs, held at Skyline Wilderness Park in Napa, California, offer a variety of trail running distances including 10K, 21K (half marathon), 30K, and a challenging 50K ultra marathon. The courses feature scenic routes with steep climbs, notably the Rim Rock Trail, providing st..

The Wildcat Half Marathon will take place in El Sobrante on Saturday 16 May 2026. You can run between 5 and 13 miles.

Sonoma Coast Trail Runs, hosted by SkyBreaker Racing, take place in Sonoma Coast State Park near Duncans Mills, California. The event offers multiple distances including a 50K, trail marathon, 30K, and half marathon, all featuring challenging elevation gains ranging from 2,800 to 7,000 feet. Runners..

The Nitro Trail will take place in San Pablo on Saturday 30 May 2026. You can run between 5 and 13 miles.