Napa-to-Sonoma is the flagship event in the Wine Country Half Marathon Series. This fast and scenic course starts at Cuvaison Carneros Winery in Napa and finishes in historic Sonoma Plaza for the world’s best post-race party where you’ll sample renowned wines from the region. This event offers the finest in wine country ambience and hospitality and draws participants from all fifty states and many foreign countries. Beware…this race sells out in minutes! GunBunFunRun 5K also offered.