Trail Running calendar near Sacramento 2025-2026

Tackle the historic Western States trail at American River Overlook Park near Auburn and Cool, CA with 5K, 10K, Half Marathon or 35K options. Expect technical single track, big climbs, generous aid and custom finisher medals.

Run scenic single track and fire roads above the Golden Gate Bridge at the Golden Gate Headlands Marathon, Half Marathon and 10K on April 4, 2026. Limited to 400 spots, this race delivers sweeping bay and ocean views.

Run the scenic trails of Mount Diablo near Walnut Creek on April 4, 2026 with Brazen Racing, offering distances from 5K to 50K. A portion of entry fees benefits Save Mount Diablo so you can race and help protect the park.

Run scenic trails along the American River Parkway with 50 mile, 25 mile or 10 mile routes all finishing in Auburn. Enjoy race swag, a handcrafted finisher medallion, on course fuel, and a festive post race beer garden.

Run around Angel Island for stunning views of the Golden Gate, Alcatraz and San Francisco in a scenic but hilly 10K or half marathon loop. Limited to 400 runners, ferry transport and a finisher shirt are included for participants.

Run TERREX Lake Sonoma at scenic Lake Sonoma with a 100K Western States qualifier, 50K, and a women only Trail Sisters half. Festival weekend features panels, livestreams, camping, and a Healdsburg post event party with finisher wine.

Join the SPASM Lake Chabot Trail Run on April 11 for scenic loops around Lake Chabot with distances from 8K to 50K for every level. Enjoy rolling hills, color coded trails, tech shirts for pre registered runners and custom finisher medals.

Join the Wild Flowers 10K in Auburn, CA on April 11, 2026 for a scenic trail loop featuring rolling terrain, single track and stunning viewpoints. Expect stocked aid stations, lively course support and chances at big prizes and travel award..

Tackle the trails of Napa Valley at the Napa Valley Endurance Run in scenic Calistoga with options from 10K to 50K on rugged singletrack and fire roads. Finishers get a custom medal and shirt, with aid stations and awards.

Outlands Endurance Races near Folsom Lake feature lakeside singletrack and sustained climbs on 25K, 50K and 50M out and back courses. Participants receive a hat, wood awards and a post race meal, with aid stations and drop bag support.

Find your pace along scenic Lake Del Valle at the Badger Cove races in Livermore, with half marathon, 10K, 5K and remote options for runners, hikers and walkers. Enjoy chip timing, custom finisher medals and shirts while supporting East Bay..

Run the scenic trails of Annadel State Park at the Annadel Half Marathon in Santa Rosa on April 18, 2026, with half marathon, 10K, and 5K options for all paces. Proceeds support Trione Annadel State Park and Sonoma County Parks Foundation.

The Canyons Endurance Runs will take place in Auburn from Friday 24 April 2026 to Saturday 25 April 2026. You can run between 25 and 161 kilometers.

Hit the trails at the Mt Tam Wild Boar Half Marathon or 10K along Bolinas Ridge with stunning Pacific and lagoon views. Limited to 300 runners, this intimate trail race returns April 25, 2026.

The Miwok 100K on May 2, 2026 in Stinson Beach CA is a rugged trail ultramarathon about 62 miles with roughly 11,000 feet of climbing. Run through redwoods, ridgelines and coastal cliffs with vistas of the Golden Gate Bridge and Point Reyes..

Join Tails & Trails on May 3, 2026 in Windsor CA to support Dogwood Animal Rescue with a fun 5K, Dogwood Dash, or virtual option. Bring your pup for a dog friendly run and help animals in need.

Run through towering redwoods and rugged coastal trails at the 36th annual Stinson Beach/Muir Woods trail races on May 9, 2026. Choose marathon, half marathon or 7 Mile routes and enjoy waterfalls, ladders and sweeping ocean views.

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..

Explore Napa's Skyline Wilderness Park on May 16 with 50K, 30K, half marathon and 10K trail runs through rim rock climbs and panoramic views of Mount Diablo, Mount Tam and Mount Saint Helena. Aid stations and on course support keep you movi..

Rimrock 50 Mile Trail Challenge in Napa invites solo runners and two person relay teams to tackle two scenic loops through Skyline Wilderness Park and nearby preserves. Expect staffed aid stations, on site camping, and hearty post race food..