Trail Running calendar near Morgan Hill 2025-2026

Run the Marin Headlands, Mt Tamalpais and Muir Woods on scenic, challenging trails, starting and finishing at Rodeo Beach. Choose 50 Mile or 50K, soak up coastal views and big climbs, and relish a well supported, limited field ultra.

Run through towering redwoods in Oakland's Redwood Regional Park with distances from a kids 50 yard dash to a challenging 50K. Enjoy ribbon marked singletrack, stocked aid stations, custom finisher medals, and awards for top finishers.

Run the Lag Bon 10K on March 22 in Fairfax on a scenic, technical Lagunitas trail with roots, rocks and muddy sections. This small charity race supports World Water Day with proceeds to safe water programs and runners get a shirt and medal.

Run along the historic Western Pacific Trail at Quarry Lakes in Fremont on March 28, 2026, with 5K, 10K and half marathon options plus a remote runner category. Mostly flat dirt and gravel trails make for a scenic, friendly race for all pac..

Join the Diablo Trails Challenge on April 4, 2026 at Mount Diablo with distances from 5K to 50K on scenic but demanding trails. A portion of entry fees benefits Save Mount Diablo and race day photos and a BBQ add to the experience.

Run with sweeping views of the Golden Gate Bridge, San Francisco Bay and Pacific Ocean on scenic trails in the Marin Headlands. Choose Marathon, Half Marathon or 10K on April 4, 2026 in a 400 runner field for an intimate coastal challenge.

Run Angel Island on a scenic hilly loop with sweeping Golden Gate, Alcatraz and Bay views. Choose a 10K or a half that circles the island twice at the 35th annual event limited to 400 runners, ferry included.

Run the scenic Horseshoe Lake Trail Run at Skyline Ridge in La Honda on April 18, 2026, with distances from 5 mile to 50K and a free kids dash. Expect rolling ridge single track, aid stations, and a friendly festival atmosphere.

Enjoy springtime trails at Del Valle Regional Park with the Badger Cove Half Marathon, 10K, 5K or remote option on April 18, 2026. Scenic lake routes, chip timing, finisher medal and tee make it a great day for runners and walkers.

Run the scenic 38th Mt Tam Wild Boar at Mt Tamalpais State Park on April 25 2026, choose the half marathon or 10K, and enjoy coastal ridge views and single track trails. Field limited to 300 so register early.

Tackle the iconic Miwok 100K through the Marin Headlands on May 2, 2026, where redwoods, ridgelines, and coastal views await. Limited to 400 runners, this supported trail ultramarathon blends rugged challenge with community and sustainabili..

Run scenic single track and dirt roads around Lake Anza in Tilden Regional Park, Berkeley, with distances from a family friendly kids dash to a tough 50K. Pre registered runners get shirts, all finishers earn custom medals and aid stations..

Run from Stinson Beach into the ancient redwoods of Muir Woods on a scenic, rugged course with ladders, staircases, streams and summit views. Choose marathon, half marathon or 7 mile on May 9, 2026; field limited to 300 runners.

Trailquake 2026 in Saratoga on May 10 delivers scenic, climbing single track trails with half marathon, 10K and 5K options for runners and walkers of all abilities. Presented by Brazen Racing with shirts and awards for finishers.

Wildcat 2026 on May 16 in El Sobrante offers scenic 360 degree views of the Bay Area with race choices from 5K to half marathon or a remote option. Join the fun and help support the East Bay Regional Parks Campership Program.

Celebrate the 15th anniversary of Run for Amma, a charity trail run at Skyline Ridge supporting UCSF cancer research. Choose from challenging 50K and 30K routes or a scenic 10K, and enjoy community support from volunteers and local clubs.

Join Nitro Trail 2026 at Point Pinole Regional Shoreline on May 30, 2026 for scenic trail races including half marathon, 10K, 5K and a remote runner option. A separate hiker start in the half welcomes slower paces and a relaxed finish.

Tackle scenic single track through Joaquin Miller and Redwood parks with distances from 8K to 50K and a kid's dash. Marked routes, steep climbs and stocked aid stations every three to six miles make this a challenging and well supported tra..

Run Spartan Trail at Toro Park in Salinas on May 31, where rolling golden hills and smooth trails set the stage for marathon, half and 10K trail races. Enjoy scenic singletrack, a lively community vibe and team and service member discounts.

Challenge yourself at the Bay Area 100 on June 6, 2026, a scenic point to point 100 mile race across East Bay ridgelines, redwood forest and Lake Chabot. Limited to 150 runners, the course features about 18,000 feet of climbing and a 33 hou..