Lake Sonoma 50

The California Fall Classic at Lake Sonoma will take place in Healdsburg on Saturday 18 October 2025. You can run between 55 and 100 kilometers.

The California Fall Classic at Lake Sonoma offers challenging 100K and 55K ultramarathon races set in the scenic wine country of Lake Sonoma, California. Known for its relentless courses featuring miles of single-track trails with stunning lake views, the event takes place in the fall, providing coo..

2025 Napa Fall Wine Country Marathon, Half Marathon & 10K takes place in Bothe-Napa Valley State Park along Saint Helena Highway in Saint Helena, CA. The course uses lush single-track trails with hills, streams and rocky sections, delivering a rugged and rewarding challenge, set just minutes from Na..

2026 Napa Valley Trail Marathon, Half Marathon & 10K takes place at Bothe-Napa Valley State Park in Saint Helena, California. The event offers three trail distances: marathon, half marathon, and 10K. Runners tackle lush single-track with hills, streams, and rocky sections; the course is marked with..

The Napa Valley Endurance Run is a four-race trail challenge in Calistoga, California, at the northern end of Napa Valley. Distances are 50k, 35k, half marathon, and 10k, all on a rugged course that climbs Oat Hill Mine Trail, Palisades Trail, Table Rock, and Mount St. Helena for expansive valley vi..

The Tails & Trails Charitable Walk/Run takes place in Windsor, California, at 11010 Estate Lane. This event offers a 5K run and a Dogwood Dash, with a virtual option allowing participants to complete any distance. The event supports a charitable cause and provides a welcoming atmosphere for runners..