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Napa Valley Marathon and Half Marathon

March 7, 2027 · 7:30 AMNapa, CA, United States

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Race snapshot

Race Day

46°F

39–57°F · Feels cold

Total elevation gain

341ft

Relatively flat course · Net elevation change −302 ft

Participants

4,000

Medium-sized race

Crowd Rating

5/ 10

Good crowd energy

The Lowdown

The Napa Valley Marathon and Half Marathon send runners point-to-point down the world-famous Silverado Trail through the heart of Napa Valley wine country, with mile after mile of bucolic vineyards and a gentle net-downhill grade. The marathon starts on the Silverado Trail in Calistoga and the half marathon near Conn Creek Winery; both finish at Vintage High School in Napa. A USATF-certified Boston Qualifier with consistently cool early-March weather, the event is a favorite of both first-timers and competitive runners. A Kiwanis Club of Greater Napa 5K is also offered. Registration for the March 7, 2027 edition is open and uses tiered pricing that rises as each tier fills; the organisers state every distance sells out, so early sign-up is encouraged.

Course Highlights: 01Silverado Trail (first ~23 miles of the marathon run along the famed trail)
02Napa Valley wine country vineyards
03Conn Creek Winery (near the half marathon start)
04Calistoga (marathon start)
05Vintage High School, Napa (shared finish line)
Also on this race weekend: Half marathon · 5K
Time Limit: 6 hours
Boston Qualifier: This race is a certified Boston Marathon qualifying event. Achieve your qualifying standard here on a verified course.

Minimum Age: 18 years
Entry Methods: Registration is online only, via the Haku platform linked from the official race website. It is currently open with tiered pricing.
There is no on-site or race-day registration, and bibs are non-transferable.
Registration Protection is available for an added fee at checkout.
Eligibility: Marathon participants must be at least 18 years old, and half marathon participants must be 12 or older.
The marathon has a strict 6-hour cutoff (13:44 per mile). Runners must reach mile 22.7 by 12:45 PM or be shuttled off course.
The half marathon allows 6.5 hours.
Required Documents: Photo ID for bib pickup; signed waiver; no medical certificate required.
Cancellation & Refund Policy: The race does not offer refunds, but typically allows bib transfers or deferrals for a fee within a specified window. Weather-related cancellations are rare but possible.

Prepare for This Race

Pace CalculatorPlan splits for marathon Race PredictorPredict your marathon time BQ CalculatorBQ-eligible course Fuel PlannerPlan nutrition for marathon, cool weather Difficulty Analyzer341ft gain, 46°F avg, marathon Training PacesTraining zones for marathon

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