Registration for the next running of Napa Valley Marathon isn't open yet. Save it on Trehko and we'll remind you the moment it opens.
Get reminded on Trehko →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.
Browse by discipline: