Trail Running calendar near Walnut Creek 2025-2026

Run scenic trails along Folsom Lake surrounded by wildflowers at the Escape from Folsom Trail Runs, offering a 10 mile and a 5K on Feb 7 2026. Aid stations, finisher medals and age group awards make it great for racers and fun runners alike..

Run scenic, rugged trails around Mt. Umunhum at Almaden Quicksilver Park with distances from a mile and kids run up to 50K. Clearly marked courses, aid stations and medals for all finishers make this winter trail event welcoming to all.

Run scenic coastal trails in the Marin Headlands at the Golden Gate Trail Run in Sausalito offering distances from 8K to 50K plus a kids dash. Expect rugged views, stocked aid stations and finisher medals for all.

Bay Breeze invites runners to a scenic, mostly flat bayside course at San Leandro Marina Park on February 14, 2026, with a half marathon, 10K and 5K. Expect chip timing, finisher medals and shirts, stocked aid stations and free race photos.

Run the Lost Trail 5K or Half Marathon at Granite Beach, Folsom Lake, enjoying lake views and wildflowers along well marked trails. Friendly aid stations and a scenic course make this a great early season challenge.

On February 21, 2026, take on scenic singletrack and fire road loops at Lake Chabot with distances from 5K to 50K for runners of all abilities. Well stocked aid stations and professional timing make this a welcoming, small field trail chall..

Montara Mountain Trail Run in Pacifica offers distances from 10K to 50K plus a free kids dash at San Pedro Valley Park. Rugged single track, coastal views, finisher medals for all and preregistered shirts.

Experience panoramic Bay views on the hilly trails of Angel Island with 5, 10, and 15 mile options and a free kids dash. Finishers earn custom medals and pre registered runners receive shirts; a charter ferry from Tiburon is required.

Enjoy scenic ridgeline trails in La Honda CA with 50K, half marathon and 10K courses through redwood forests and open grasslands. All entry fees support Ridge Trail Organisation and every runner receives a Bay Area Ridge Trail duffel bag.

Tackle scenic trails at China Camp State Park in March 2026 with in person or virtual 5K, 10K, and a challenging half marathon. All entrants receive a beer sampler stein, event shirt, and handcrafted woodallion.

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 three scenic courses over three days in Marin County, summiting classic peaks with sweeping Bay Area views. Choose from 28K and 50K single loops or a new 100K point to point, with full race support, timing and finisher awards.

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.

Experience scenic single track trails through Bothe Napa Valley State Park with marathon, half marathon and 10K options. Limited to 300 runners, this hilly, creek lined route showcases vineyard country and rewards finishers with medals and..

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.

Test your limits at Bad Ass Backyard Ultra in Rio Linda March 28, 2026. Run 4.16 mile loops each hour until one runner outlasts the field; this Satellite qualifier can put you on the path to national team selection and Big's Backyard Worlds..

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 the classic American River Endurance Runs from Folsom to Auburn, featuring 50 mile, 25 mile and 10 mile trail races that finish at the Auburn Overlook. Scenic river corridor, on course support, and a festive post race atmosphere.