Napa Wilderness Trail Runs
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Napa Wilderness Trail Runs at Skyline Wilderness Park
This event takes place on May 15, 2027 at Skyline Wilderness Park in Napa, California and is organized by Bay Trailrunners. It offers multiple trail race distances and on-course support across the park and adjacent Napa Open Space.
Distances
- 50K
- 30K
- 21K
- 10K
Course and aid information: course maps and elevations are provided by the organizer. The listed route distances and elevation gains include a long ultra route of about 32.4 miles with roughly 6,700 ft of ascent, a 30K route of about 18.2 miles with ~4,000 ft gain, a 21K of about 13.9 miles with ~2,600 ft gain, and a 10K of about 6.1 miles with ~1,300 ft gain. Aid stations are spaced roughly every 5 to 9 miles with prepackaged food, Skratch and Cure hydration, and GU gels; plant based options are available. There is a roughly 7 mile section with only a water stop; runners should carry sufficient hydration and nutrition for that stretch. Crew access is limited to the Lake Marie aid station.
Logistics and policies: parking fee is included in registration and participants must enter via the South Gate overflow lot; spectators use the main gate and pay the parking fee. All races are cupless so runners must bring their own cup, bottle, or hydration system. Bib pickup opens one hour before each race and a mandatory race briefing occurs 10 minutes prior to each start. Cutoff times are 4 hours for the 10K, 6 hours for the 21K (no aid station cutoffs), 8 hours for the 30K (no aid station cutoffs), and 10 hours for the 50K; the 30K portion must be completed within 6 hours to continue onto the final loop. Camping and other park services are managed separately by Skyline Wilderness Park. Final results are posted online within 72 hours after the event.
Additional notes: dogs are allowed in start/finish and camping areas but not on trails. Volunteers receive a race credit for multi hour shifts and race swag includes shirts and an insulated cup for finishers; medals are not provided. Visit the organization's website for the most recent information.
