Calistoga, United States of America · Sunday 7 March 2027
The Napa Valley Marathon is an annual running event held in California's Napa Valley, typically in early March. The race starts in the town of Calistoga and follows the Silverado Trail southward, concluding at Vintage High School in the northern part of Napa. The point-to-point course runs through a rural landscape featuring vineyards, groves of flowering fruit trees, and views of surrounding mountains, with much of the route lined by world-renowned wineries and fields of mustard flowers.\n\nThe
Adjusted Time
3:56:21
Time difference: -3.7 minutes compared to a flat, road, temperate course.
Napa Valley Marathon is a full marathon held in Calistoga, United States of America, scheduled for Sunday 7 March 2027. The course is run on road surface with 172m of total elevation gain, reaching a maximum altitude of 120m above sea level. For registration and full race details, visit the official Napa Valley Marathon website.
With 172m of elevation gain, this is a moderately undulating course. The route ranges from 17m to 120m above sea level (103m total range). While not completely flat, the elevation changes are manageable for most runners and shouldn't significantly impact pacing strategy.
Based on historical weather data for March, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 5°C to 15°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (0%), so dry conditions are likely.
Napa Valley Marathon is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Napa Valley Marathon is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Napa Valley Marathon against other marathons to find the right race for your goals.
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