Ready to race? Register directly on the official race website — opens in a new tab.
Register →Save this race to your wishlist, set a registration reminder, and build a full training plan on Trehko.
Napa Valley Marathon is a marathon running event held in Napa, CA on Mar 1, 2026. It draws 3,000 competitors and is a Boston Marathon qualifier. The course features net elevation loss — ideal for time goals.
Trehko tracks registration status, entry fees, and deadlines for Napa Valley Marathon and thousands of other endurance races. Use the app to set a registration reminder and build a training plan tailored to race day.
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