Trail Running calendar near La Honda 2026-2027

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.

Experience the beauty of Redwood Regional Park in Oakland with distances ranging from 5 miles to a 50K ultramarathon. Run through towering redwood groves and along scenic ridges in this spring trail event.

Experience the trails of Clayton at the Diablo Summit Challenge. Run a 22.5 km course starting at Mitchell Canyon Road and support local community initiatives through this outdoor adventure.

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.

Run through the Skyline Ridge Open Space Preserve on a scenic course featuring coastal views and gentle hills. All proceeds and matched entry fees support medical aid programs via The Hatuey Project.

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 along the scenic Pacifica coastline in the Mori Point 7K. This event features a flat course through the Mori Point National Recreation Area using a mix of trails and paved paths.

Experience a scenic trail run through the Marin Headlands with panoramic views of the Golden Gate Bridge and Pacific Ocean. Choose between 10K, half marathon, and marathon distances on a course featuring wildflower lined trails.

Experience the scenic beauty of Mount Diablo with trail races ranging from 5K to 50K. Support local land preservation while enjoying a professional event featuring a post race BBQ in Walnut Creek.

Experience a scenic trail run around Angel Island with panoramic views of the Golden Gate Bridge and San Francisco. This event features a hilly loop course for both Half Marathon and 10K distances with ferry transport included.

Experience a scenic trail run around Lake Chabot and the surrounding hills of Castro Valley. With distances from a 50 yard dash to a 50K ultramarathon there is an event for everyone at this regional park.

Experience a scenic trail run along the San Francisco coast with views of the Golden Gate and Pacific Ocean. This five kilometer event awards ribbons to all finishers and top category performers.

Run the scenic trails at Lake Del Valle Regional Park in Livermore. The Badger Cove event offers a Half Marathon, 10K, and 5K on April 18, 2026, with walkers and hikers welcome. The half marathon is part of a challenging trail series.

Experience the coastal beauty of the Bay Area Ridge Trail with distances ranging from a 50 yard dash to a 50K ultramarathon. Runners enjoy expansive views of the Pacific Ocean and the Santa Cruz Mountains.

Experience a technical trail race through the scenic parks of San Carlos. Choose from four distances including a 15K long course and a dedicated kids run to support local trail maintenance.

Experience the majestic redwoods of the San Francisco Peninsula with professional chip timed races spanning 10K to 50K. Navigate beautiful single track trails and steep canyons in this scenic trail running event.

Run along the scenic coastal ridge of Mt Tamalpais State Park in this 38th annual event. Choose between a half marathon or 10K featuring single track trails and views of the Pacific Ocean.

The Miwok 100K is a classic 62-mile trail ultramarathon in the Marin Headlands, featuring over 11,000 feet of climbing. This iconic race, which starts in Stinson Beach, is a qualifier for major events like Western States.

This inaugural trail run takes you through Jack London's historic Beauty Ranch in Sonoma. Choose from a half marathon or 5 mile course past vineyards and into pristine hillsides. The event includes participant T-shirts and finisher medals f..

Experience the 36th annual trail run through Muir Woods and the legendary Dipsea trail. Choose between a marathon, half marathon, or 7 mile route starting from the scenic Stinson Beach.