Races Marathon · Napa, USA
Napa Valley Marathon
Napa Valley Marathon is a rolling marathon in Napa, USA, held each March. Point-to-point down the Silverado Trail through wine country — net downhill with constant gentle rollers. March is cool, 6-14C, with rain possible. With Napa Valley Marathon's constant undulation, pace by effort rather than the watch: even effort beats even splits here.
Page rebuilt 2026-10-01 · race facts not independently verified — confirm dates and entries on the official race site
When
March
every year
Course
rolling
Marathon
Conditions
March is cool, 6-14C, with rain possible.
Racing this course well
Point-to-point down the Silverado Trail through wine country — net downhill with constant gentle rollers.
With Napa Valley Marathon's constant undulation, pace by effort rather than the watch: even effort beats even splits here.
Pick your goal for Napa
Pace charts, weekly structure and timelines for the most common marathon goals:
We don’t hold a confirmed date for this edition, so any countdown comes from the date you enter here.
Build your training around Napa Valley Marathon.
RunV works backwards from race day to today and rearranges the weeks when life interrupts. It does not adapt to this specific course — the pacing guidance above is where the course knowledge is.
Everything above stays free and complete — this is an optional next step, not a paywall.
Asked often
- When is the Napa Valley Marathon?
- It is held each March in Napa, USA. Check the official Napa Valley Marathon site for the exact date and entry windows.
- Is the Napa Valley Marathon course flat?
- Point-to-point down the Silverado Trail through wine country — net downhill with constant gentle rollers.
- How should I train for the Napa Valley Marathon?
- Train specifically for Napa — terrain, conditions, goal pace — and let the plan flex around real life. That's exactly what RunV's engine does after every run you log.
Not sure what to target? Predict your marathon time from a recent race →
More marathon races
Build for Napa — around your actual life
RunV engineers your block backwards from race day in March — and rebuilds it every time training doesn't go to script.
