Trail Running calendar near Rutherford 2026-2027

The Zoom Angel Island will take place in Tiburon on Sunday 1 March 2026.

Explore the Santa Cruz Mountains on this trail run fundraiser. Choose from 10K, 21K, or 50K distances through scenic ridge preserves. Your entry fully supports the Bay Area Ridge Trail.

This event combines a scenic 5K trail run or a one-mile fun run/walk with a Polar Plunge fundraiser. The runs take place before participants brave the waters at Granite Bay Main Beach to support Special Olympics Northern California.

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.

Course and Location The Marin Ultra Challenge (MUC) is a trail race taking place in Marin County. The 11th edition of the event will be held on Saturday, March 14, 2026. The journey starts on Rodeo Beach and the courses traverse the Marin H..

This trail run along Folsom Lake features a scenic, mostly single-track course. Runners can choose from distances ranging from a 1 mile to a 50K. All finishers will receive a medal.

The Big Alta is a scenic trail running weekend in Marin County, California. It offers three challenging distances: a 100K point to point, a 50K loop, and a 28K loop, all summiting high points for vast Bay Area views.

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 in Fairfax, CA, on March 22, 2026. This run supports clean water access and features a scenic, technical course around Marin's reservoirs.

The Horseshoe Lake Half Marathon will take place in La Honda on Sunday 22 March 2026. You can run 21 kilometers.

Run a flat and fast course on the historic Western Pacific Trail in Fremont. Choose from a half marathon, 10K, or 5K starting at Quarry Lakes. The event is open to runners and walkers of all levels.

Run on the historic Western States trail at the Knickerbocker Canyon Trail Run. Choose from four distances, from a 5K to a challenging 35K, all starting from American River Overlook Park. The course features river views, the iconic No Hands..

Run the single-track trails alongside Folsom Lake in El Dorado Hills. The event offers four distances from a 5K to a half marathon, with technical sections and scenic views. All finishers receive a medal.

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..

Experience a rugged trail running weekend in California's wine country on April 11, 2026. The event offers a Western States qualifying 100K, a challenging 50K, and a women's Trail Sisters Half Marathon. All races are cupless and feature sce..