Napa Valley Trail Marathon, Half Marathon & 10K

Napa Valley Trail Marathon, Half Marathon & 10K is run on the demanding trails of Bothe-Napa Valley State Park in Calistoga, California, on March 20, 2027. Three trail distances are offered, the marathon (26.2 miles), the half marathon (13.1 miles) and a 10K, all on singletrack away from the usual crowded tourist routes, with hills, creek crossings and rocky ground. Start times are not listed in the available data.

The field is capped at 300, which keeps the trails uncluttered but means entering early. Rocky singletrack rewards runners who look several steps ahead and shorten their stride on descents rather than braking. Every entrant receives a race shirt, the top three men and women in each age group across all distances take custom ribbons, and marathon and half marathon finishers get medals.