Trail Running calendar near Lake Sonoma 2026-2027

The Zoom Angel Island will take place in Tiburon on Sunday 1 March 2026. You can run between 5 and 15 miles.

A spring trail event at China Camp State Park offering live and virtual 5K, 10K and half marathon options. Courses include technical single track and substantial elevation and organizers do not offer refunds.

A long-distance trail event in Sausalito featuring a 50K and 50 Mile through Marin Headlands, Muir Woods, and Mt. Tamalpais, with live timing, aid stations, cupless provisions, and cash prizes for top 50 Mile finishers.

A trail running weekend in Marinwood, California, with 28K and 50K single loops plus a point-to-point 100K, featuring routes that summit several high points and offer wide views across the San Francisco Bay Area.

Run through the scenic single track trails of Bothe Napa Valley State Park. Choose from marathon, half marathon, or 10K distances on this popular course. Participation is limited to 300 runners for the annual trail event.

A charity trail run on March 22, 2026, at Lake Lagunitas near Fairfax, CA. The 10 km course includes technical terrain and ~400 feet of elevation change, with proceeds beyond event costs donated to Evidence Action's Safe Water Now program.

Explore the scenic trails of the Golden Gate Headlands. This event offers a marathon, half marathon, and 10K distance on April 4, 2026.

Run a scenic, hilly loop around Angel Island with views of the Golden Gate Bridge and San Francisco Bay. The event includes a half marathon and a 10K, with ferry transportation from Tiburon included in the entry fee. Participation is limite..

Springtime trail races at Lake Sonoma on April 11, 2026 feature a Western States qualifying 100K, a 50K that crosses the Lake Sonoma bridge, and a women-only Trail Sisters half marathon with shuttle service.

Event Overview The Calistoga Mountain Run is a trail running event with distances of 50k, 35k, a half marathon, and a 10k. It starts in downtown Calistoga, California. The routes take runners onto trails and into Robert Louis Stevenson Stat..

A 50K trail run along Northern California's Mendocino Coast, featuring river crossings, redwood forest sections and waterfalls. The course finishes on the Mendocino Village bluffs with views over the Pacific Ocean.

Run for a cause at the Annadel Half Marathon in Santa Rosa's Spring Lake Regional Park. Choose from a half marathon, 10K, or 5K on scenic trails, with proceeds supporting Trione-Annadel State Park. It's a low-waste event featuring a race me..

The Mt. Tam Wild Boar Half Marathon & 10K is a scenic trail run on Mt. Tamalpais with ocean views. Taking place on April 25, 2026, it features half marathon and 10K distances. Participants receive T-shirts, and half marathon finishers get m..

A 62 mile trail ultramarathon in the Marin Headlands near Stinson Beach, CA, featuring over 11,000 feet of climbing, marked trails and staffed aid stations with medical crews. Entry is limited to 400 runners and a four person relay is offer..

Tails & Trails is a charitable run and walk supporting Dogwood Animal Rescue. Choose from a 5K, Dogwood Dash, or a virtual option on May 3, 2026. Registration opens in March.

A trail run on Pacific Union College trails in Angwin, CA on May 3, 2026 offering a 1 Mile Kids Run for ages 7 to 12, plus 10K and 26K distances. The event is cupless and proceeds benefit PUC Athletics.

The Muir Woods Marathon takes place on May 9, 2026, offering a scenic trail run near Stinson Beach. Participants can choose from a marathon, half marathon, or 7-mile distance, navigating the beautiful coastal and forested terrain.

An annual 5K trail run in Point Arena along the Point Arena Stornetta Unit of the California Coastal National Monument. Proceeds support ACORN Partners in Education and its Students Protecting the Coast youth stewardship program.

Trail race on May 9, 2026 at Lake Anza in Tilden Regional Park offering distances from 10K to 50K plus a free kids 50 yd dash. Courses are marked, aid stations occur every 3 to 4 miles, and the event uses a cupless aid protocol.

This inaugural half marathon offers a scenic tour of Napa Valley, running on closed vineyard roads from Quintessa Winery to Yountville. The race includes shuttle transport, a custom medal, and concludes with a Wine Village celebration featu..