Napa Valley Marathon
Sunday, March 1, 2026
Elevation Gain
150m
Elevation Range
103m
Avg Temperature
52°F / 11°C
Course Profile
rolling
Course Map & Elevation
Course Overview
A net-downhill, point-to-point course dropping 105m from Calistoga (110m) to Napa (5m) along the scenic Silverado Trail through wine country. The gentle but sustained descent favors fast times and Boston qualification, but the rural course demands mental toughness through long stretches with minimal crowd support.
Key Segments
Calistoga to St. Helena
Terrain: Steady descent from 110m to 63m along the Silverado Trail through the upper Napa Valley. Gentle grade with minor undulations
Challenge: The downhill and cool morning tempt aggressive opening splits. The rural quiet can feel isolating early
Tactic: Run 5-10 sec/km slower than goal pace. Let gravity assist without pounding your quads. Enjoy the vineyard scenery and settle into rhythm.
St. Helena to Yountville
Terrain: Continued gentle descent from 63m to 36m through Rutherford and Oakville wine country. Mostly flat to slightly downhill
Challenge: The middle section of the Silverado Trail is beautiful but monotonous with sparse crowds. Halfway adrenaline at km 21 can prompt premature surging
Tactic: Settle into goal pace. Fuel consistently every 5km. Stay mentally engaged through the quiet vineyard stretches.
Yountville to Napa Outskirts
Terrain: Very gradual descent from 36m to 14m through Stags Leap District. The grade becomes almost imperceptible
Challenge: The loss of gravitational assist can feel like hitting a wall if you relied on the downhill. Quad fatigue accumulates
Tactic: Maintain goal effort. This is where negative splitting pays off — you should be accelerating through this section if you paced the first half correctly.
Napa City to Finish
Terrain: The flattest section of the course (14m to 5m). Urban roads through Napa neighborhoods to Vintage High School finish
Challenge: Nearly flat terrain on tired legs. No more downhill assist. The course can feel long if you spent your reserves early
Tactic: Push through the final 9km. The gradual transition from rural to urban brings building crowd support. Save a final gear for the last 3km into town.
Race-Specific Training
- •Run at least two long runs of 30-35km on a net-downhill route (1-2% grade) to simulate the Silverado Trail's sustained descent and condition quads for eccentric loading
- •Practice running alone on rural roads for 2+ hours with minimal external stimulation to build the mental toughness needed for Napa's quiet vineyard stretches
- •Train on cambered road shoulders, as sections of the Silverado Trail have uneven surfaces that stress the hips and ankles differently than flat paths
Conditions & Environment
Altitude
Start at 110m, finish at 5m. No altitude concerns. Net downhill of 105m.
Weather
Early March. Typical temps 6-16°C (43-61°F). Rain, fog, and gusty winds are all possible. Napa Valley mornings can be significantly cooler than afternoon conditions.
Sun & Wind
The Silverado Trail is exposed to both sun and wind with minimal tree cover in the vineyard sections. Crosswinds can be significant in the valley. Morning fog often burns off by midrace.
What to Wear
Disposable warm layer at the Calistoga start. Arm sleeves recommended. Light singlet and shorts underneath. Be prepared for rain — a light throwaway poncho can help through the first hour.
Pacing Strategy
| Segment | Pace | Note |
|---|---|---|
| km 0-10 | 5-10 sec/km slower than goal pace | Steepest descent section. Bank energy, not time. The downhill masks true effort. |
| km 10-21 | Goal pace | Settle into rhythm through the heart of wine country. Fuel consistently. |
| km 21-33 | Goal pace or slightly faster | Begin the negative split. The grade flattens but you should be accelerating on effort. |
| km 33-42.195 | Push to the finish | Flattest section. Use building Napa crowds and the finish-line pull to maintain or increase pace. |
Race Day Tip
The wine country air is deceptively dry despite cool temperatures. Start hydrating well before race day and take fluids at every aid station even if you do not feel thirsty. Many runners underestimate fluid loss on this course because the cool morning and gentle grade mask how hard they are working.
Race details subject to change. Verify with the official race website.
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