Lake Sonoma 50

Taking place in Healdsburg, California, the TERREX Lake Sonoma weekend features three distances on April 11, 2026: the Lake Sonoma 50 Mile, the Lake Sonoma Marathon, and the Trail Sisters Half Marathon. The event blends competitive racing with a festival atmosphere, including an Elite division in the 50 Mile with its own start and cash prizes, and a Party Pace pacer program to help runners reach the finish. Live streaming by Mountain Outpost offers full coverage of the 50 Mile and highlights from the others, with free WiFi at Start, Finish, and key aid locations.

A Sunday celebration at Coyote Sonoma caps the weekend. Visit the organization's website for the most recent information.