Napa Valley Marathon 2027
Napa, CA, USA
The course
Point-to-point course running south along the Silverado Trail from Calistoga to Napa through vineyard country. Net downhill, dropping from nearly 400 feet at the start to about 60 feet at the finish, though there are rolling hills through miles 15-20 and the final five miles are flat. Finish at Vintage High School in Napa; USATF-certified Boston qualifier.
Course summary source: findmymarathon.com
Course map & elevation
No GPS track for this course yet.
We haven't mapped the Napa Valley Marathon route yet. Elevation data will appear here once a licensed or organizer-verified course map is available.
Training for the Napa Valley Marathon?
Coach Icarus builds your plan around your fitness, your schedule, and this course's elevation.
Race-week weather
Typical high
17°C
Typical low
6°C
Year-to-year swing
±2.1°C
Rain
3.6 mm/day
Based on 2020-2025 of race-week history, with peak gusts around 16 km/h.
Difficulty
Race facts
- Official race site
- napavalleymarathon.com ↗
- Start time
- 07:30
- Field size
- 1,942 finishers (2026)
- Boston qualifier
- Yes
Distances: 42.2 km
Training for the Napa Valley Marathon?
Coach Icarus builds your plan around your fitness, your schedule, and this course's elevation.
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