Napa Valley Trail Marathon, Half Marathon & 10K™

Course Details

  • Course will be marked with orange ribbon.
  • The only aid station is at the start/finish. There is no access to remote areas of the park.
  • We highly recommended that you carry water.
  • The only aid station for the 10K is at the start/finish area.
  • The Half-Marathoners will run the 10K loops twice; you will pass aid at mile 6.
  • Marathoners start by running the 10K loop, then pass through the start/finish area and head south to complete a double out-and-back extension to the Old Bale Grist Mill. The Marathon does this entire course (10K loop, 4-mile out-and-back) twice, before completing a final 10K loop for 26 miles. Marathoners pass aid each time they run through the start/finish area (miles 6, 10, 16, 20).
  • There is a 6-hour course wide cutoff; for marathoners, this reflects a 13:45-per-mile pace.
  • Sorry, no dogs allowed on the trails.
  • What's in a distance?
  • And last, but not least, absolutely NO AUDIO devices allowed. You will be disqualified if found or reported wearing any audio device. We want to have a safe race. Read more about Headphone-Free Running.