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2027 Napa Valley Trail Marathon

Napa Valley Trail Half Marathon: small, scenic trail run through wine country.

Race Date

Mar 15, 2027

Location

Calistoga, CA

Solid Pick50

Quick facts

Date
Monday, March 15, 2027
Location
Calistoga, California
Distance
Half marathon (13.1 mi)
Course
Loop Course
Terrain
Trail
USATF certified
Not listed

Highlights

Good For

Destination Worthy

Atmosphere

Low Key

Course

Scenic Route

The Experience

The Napa Valley Trail Half Marathon, organized by Enviro Sports, takes runners through the scenic trails of Napa Valley wine country. Starting in Calistoga, the course winds through rolling vineyards and oak woodlands, offering a peaceful escape into nature. Typical race-day weather is mild, with temperatures ranging from 44 to 64°F, making for comfortable running conditions.

With a median field of just 71 runners from about 8 states, the race maintains an intimate, low-key atmosphere. First held in 2016, the event now boasts its 8th edition, drawing trail enthusiasts seeking a quiet weekend in wine country. The finish area offers post-race refreshments, and the surrounding valley is prime for exploration. While not a PR course due to its trail nature, the half marathon provides a rewarding challenge amidst stunning scenery.

Race-provided description

The Napa Valley Trail Runs, organized by Enviro Sports, offer trail marathon, half marathon, and 10K distances through the scenic Napa Valley wine country. The fall edition features a Saturday race on October 24, 2026, with a spring edition planned for March 2027.

Logistics

Race Day

Monday, March 15, 2027

Start Time

TBA

Start Location

Calistoga, CA

Directions

Course Info

Course Type

Loop Course

Terrain

trail

Scenery

Rural, Small Town

Surface

Dirt Trail

Difficulty

Rolling Hills

Quality Score

Solid Pick50
Methodology
Heritage20/20

15 years running

Size9/15

~71 finishers a year

Momentum4/5

shrinking

Loyalty0/20

0% returning runners

Course & details3/15

3 timing sources

National draw5/10

runners from 8 states

Front-pack speed1/5

winner 1:30:52

Weather8/10

typical high 62°F

Race Day Weather

5-year historical avg

Start (Low)

49°

Afternoon (High)

61°

Pleasant conditions — light layers at start, comfortable by finish

0.1"

Precipitation

18 mph

Wind

78%

Humidity

Frequently asked

When is the 2027 Napa Valley Trail Marathon?

The 2027 Napa Valley Trail Marathon is held on Monday, March 15, 2027.

Where does the 2027 Napa Valley Trail Marathon take place?

It takes place in Calistoga, California.

What distances does the 2027 Napa Valley Trail Marathon offer?

The half marathon (13.1 miles).

Is the 2027 Napa Valley Trail Marathon course flat and good for a PR?

The 2027 Napa Valley Trail Marathon is a rolling hills, loop course course.

HalfRuns editorial — independent, no paid placement.

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