Trail Running calendar near Lafayette 2026-2027

The Zoom Angel Island will take place in Tiburon on Sunday 1 March 2026. You can run between 5 and 15 miles.

Trail event near La Honda, CA offering 10K, half marathon and 50K routes across Skyline, Russian Ridge and Monte Bello preserves, with varied surfaces, multiple aid stations and specified cutoffs.

A spring trail event at China Camp State Park offering live and virtual 5K, 10K and half marathon options. Courses include technical single track and substantial elevation and organizers do not offer refunds.

Event Overview The Marin Ultra Challenge is a long-distance trail race in Marin County, California. It will be held on Saturday, March 14, 2026. The event offers two race distances: 50 miles and 50K. It is described as a physically demandin..

A multi-distance trail event on the Southside Trail at Folsom Lake featuring mostly single-track running, lake and Sierra views, technical sections, course markings, aid stations, and commemorative medals for finishers.

A trail running weekend in Marinwood, California, with 28K and 50K single loops plus a point-to-point 100K, featuring routes that summit several high points and offer wide views across the San Francisco Bay Area.

Run through the scenic single track trails of Bothe Napa Valley State Park. Choose from marathon, half marathon, or 10K distances on this popular course. Participation is limited to 300 runners for the annual trail event.

A trail event in Oakland through Redwood Regional Park offering distances from a kids 50 yd dash to a 50K. Marked loops, aid stations every 5 to 6 miles, cupless event.

A 22.5K event in Clayton, California on March 21, 2026, organized by Nomadic Adventure Club; registration closes March 20 and donations support the club’s free community initiatives.

The Lag Bon 10K is a trail race on March 22, 2026, in the Marin County watershed. This event supports clean water initiatives while offering a technical 10 km course with views of local reservoirs. Registration is limited to 100 runners.

A half marathon on March 22, 2026 in La Honda, California, the Horseshoe Lake course runs through Skyline Ridge Open Space Preserve with ocean and bay views. The trail mix and 2230' ascent support The Hatuey Project with entry fees matched..

Join the Western Pacific event on a mostly flat course in Fremont, California. Run on historic trails along Alameda Creek, starting and finishing at Quarry Lakes. Choose from the half marathon, 10K, or 5K distances.

Trail races along single track by Folsom Lake on March 28, 2026, with 5K, 10K, 8 Mile and half marathon options. Courses feature dirt and rock surfaces, rolling hills, marked navigation and aid stations, and a commemorative medal for finish..

This scenic trail run offers marathon, half marathon, and 10K distances through the panoramic Marin Headlands. The course features stunning views of the Golden Gate Bridge, San Francisco Bay, and the Pacific Ocean. With a limited field of 4..

The Diablo Trails Challenge offers four trail distances on Mount Diablo. A portion of entry fees supports the conservation work of Save Mount Diablo. The half marathon is part of the challenging Brazen Ultra Half Series.

The American River Endurance Runs offer three distances: 50, 25, and 10 miles, all finishing in Auburn. The 50-mile race is one of the largest of its kind in the US. Runners are supported with aid stations and celebrated at the finish with..

Run a scenic, hilly loop around Angel Island with views of the Golden Gate Bridge and San Francisco Bay. The event includes a half marathon and a 10K, with ferry transportation from Tiburon included in the entry fee. Participation is limite..

Springtime trail races at Lake Sonoma on April 11, 2026 feature a Western States qualifying 100K, a 50K that crosses the Lake Sonoma bridge, and a women-only Trail Sisters half marathon with shuttle service.

Multiple marked trail distances circle Lake Chabot reservoir in Castro Valley, from a free 50 yard kids dash to a 50K. Aid stations occur every 4 to 5 miles and the event operates cupless, so bring a personal cup or soft flask.

Event Overview The Calistoga Mountain Run is a trail running event with distances of 50k, 35k, a half marathon, and a 10k. It starts in downtown Calistoga, California. The routes take runners onto trails and into Robert Louis Stevenson Stat..