Napa Wilderness Trail Runs

MAY
15
2027
Trail races at Skyline Wilderness Park in Napa on May 15, 2027 offering 50K, 30K, 21K and 10K with on-course aid and nearby camping options.
Sat 15 May 2027
52 kilometers 18 miles 14 miles 6 miles

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Napa Wilderness Trail Runs

The Napa Wilderness Trail Runs take place at Skyline Wilderness Park in Napa, California on May 15, 2027. The event is organized by Bay Trailrunners and offers multiple trail race distances with on-course aid stations and park camping nearby.

The course includes new segments through Napa Open Space and the longer routes climb the Rim Rock Trail, offering wide valley views and sightlines toward Mount Diablo, Mount Tamalpais, and Mount Saint Helena. Course maps and Strava routes are provided; final maps may change due to park or permitting requirements.

Distances and basic course data:

  • 50K : 32.4 miles, ~6,700 ft elevation, cutoff 10 hours
  • 30K : 18.2 miles, ~4,000 ft elevation, cutoff 8 hours
  • 21K (Half Marathon) : 13.9 miles, ~2,600 ft elevation, cutoff 6 hours
  • 10K : 6.1 miles, ~1,300 ft elevation, cutoff 4 hours

Logistics: the $6 park parking fee is included with registration for runners; runners must enter via the South Gate overflow lot while spectators use the main gate and pay the parking fee. Runner check-in and bib pickup open one hour before each race, and a mandatory race briefing occurs ten minutes before each start. This is a cupless event; runners must bring their own cup, bottle, or hydration system. Aid stations are spaced roughly every 5 to 9 miles, will serve packaged food, and provide hydration products such as Skratch, Cure, and GU. There is no on-course bathroom; porta-potties are at the start/finish. Runners are responsible for their own transport from the course if they drop and should plan for a longer water-only section on the 30K and 50K. Visit the organization's website for the most recent information.

52 km
50k Ultra
18 mi
30k
14 mi
21k / Half Marathon
6 mi
10k

Events nearby

A community ultramarathon and hike at Skyline Wilderness Park in Napa, CA, featuring a 3.3-mile loop repeated up to ten times in an hourly format to raise funds for the Pheo Para Alliance.
Viansa Wine Run 5K in Sonoma on April 18, 2027 is a chip timed 5K at Viansa Winery with a race shirt, collapsible wine glass, finisher medal and a pour of wine.
Timed half marathon through Napa vineyards from Quintessa Winery to Yountville with winery aid stations, a Finish Line Wine Village, shuttle service, and a finisher medal.
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