Trail Running calendar near Napa 2025-2026

Run scenic trails at Lake Sonoma near Healdsburg with 100K, 50K or the Trail Sisters women only half marathon that finishes at the Visitor Center. Expect big climbs, lake overlooks, strong aid support and a celebratory finish.

Run around Lake Chabot's scenic reservoir and rolling hills on April 11, 2026, with distances from a kids dash to a 50K ultra. Pre registered runners get shirts, all finishers earn medals, and well stocked aid stations keep you moving.

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..

Challenge scenic, technical trails above Calistoga with 50K, 35K, half marathon and 10K options, several UTMB index races. Big climbs, remote single track and a custom finisher medal and race shirt for every finisher.

Run scenic lakeside trails at Folsom Lake on April 18, 2026 in the Outlands Endurance Race. Choose 25K, 50K, or 50M courses across single track and wider trails with stocked aid stations and finisher swag.

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..

Hit the trails April 18, 2026 at Skyline Ridge Open Space Preserve in La Honda for the Horseshoe Lake Trail Run, with distances from 5 miles to 50K plus a free kids dash. Enjoy Pacific and Santa Cruz Mountain views, single track terrain, st..

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.

Join the No Foolin' Foot Race in San Carlos on April 18, 2026 with 1K kids, 5K, 10K and a new 15K route across Big Canyon, Eaton and Pulgas Ridge. Festival vibes, tech shirts, pro timing and proceeds help local trails.

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.

Take on the Miwok 100K in the Marin Headlands near Stinson Beach, a scenic 62 mile trail with 11,000 feet of climbing. Limited to 400 runners, the well supported, low waste event offers relay and training options plus finisher swag.

Join Tails & Trails on May 3, 2026 in Windsor, CA for a charitable walk and run supporting Dogwood Animal Rescue. Choose a 5K, the family friendly Dogwood Dash, or participate virtually while helping animals in need.

Join Angwin to Angwish, a scenic trail run through Pacific Union College woods with 26K, 10K and a 1 Mile Kids Run for ages 7 to 12. Family friendly, cupless event with race day check in and proceeds benefiting PUC Athletics.

Run the classic Stinson Beach to Muir Woods trails on May 9, 2026, choosing marathon, half or 7 mile routes in a limited 300 runner field for an intimate race experience. Expect rugged coastal redwood paths, creek crossings and rewarding pa..

Run the scenic Berkeley hills from Lake Anza in Tilden Park with distances from 10K to a rugged 50K, plus a free kids dash. Register early for a tee, all finishers get a custom medal, and parking is free.

Tackle scenic hilly trails at the Quicksilver Endurance Runs on May 9 in Almaden Quicksilver Park. Choose 50K or Western States qualifying 100K, enjoy stocked aid stations and a post race BBQ while supporting youth and trail nonprofits.

Join the Wine Half Marathon in Napa Valley on May 9, 2026, a 13.1 mile route through vineyards from Rutherford to Yountville. Founded by four French American wine professionals, the race blends warm hospitality, surprises, and scenic trails..

Run among redwoods and pines at Sanborn Park on May 10, 2026, with 5K, 10K and half marathon options on scenic single track trails. Walkers welcome as you climb to beautiful viewpoints and enjoy a friendly trail race atmosphere.

Hit rugged singletrack at the Napa Wilderness Trail Runs in Skyline Wilderness Park, with 10K, 21K, 30K and 50K options. Expect steep climbs, sweeping valley views, spaced aid stations and a true backcountry trail experience.