Napa Valley Trail Marathon
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Napa Valley Trail Marathon, Half Marathon, 10K & 5K - 35th Annual
This event takes place on March 20, 2027 at Bothe-Napa Valley State Park in Saint Helena, California. The race offers multiple trail distances and is limited to 300 participants; it reportedly sells out each year.
Distances:
- Marathon
- Half Marathon
- 10K
- 5K
The courses run on lush single-track through the state park, with streams, hills, and rocky sections. Parts of the trail are narrow with steep drop-offs. The route is marked with orange ribbon at turns and trail crossings. The 10K is a single loop; the half marathon repeats the 10K loop twice. Marathoners run the 10K loop, complete a roughly 4-mile out-and-back to the Old Bale Grist Mill, repeat that pattern, then finish with a final 10K loop.
There is one aid station at the start/finish area. Half marathoners encounter it once between loops; marathoners see it at approximately miles 6, 10, 16, and 20. Participants are advised to carry hydration.
Bibs are mailed beginning two weeks before the event; bib pick-up and distance changes are available on race morning. Parking inside the park carries a $10 per vehicle fee; free overflow parking is available along Highway 29. Registrations are non-refundable and non-transferable; cancellations by February 20, 2027 may receive a rollover credit subject to a $20 fee.
T-shirts are provided to all participants. Personalized award ribbons are mailed to top three finishers by age group, and finisher medals are given for the full and half marathons. Headphones and audio devices are not allowed on course for safety. Visit the organization's website for the most recent information.
