Napa Wilderness Trail Runs
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Event overview
Napa Wilderness Trail Runs takes place May 16, 2026 at Skyline Wilderness Park, 2201 Imola Ave., Napa, CA. Distances offered:
- 50K
- 30K
- 21K
- 10K
Registration closes May 15. The $6 park parking fee is included with race registration. Dogs are permitted in the start/finish and camping areas but are not allowed on the trails.
Course, aid and logistics
Courses include trail sections on Rim Rock Trail with steep uphill sections and valley views, including visible peaks to the east, west and north. Aid stations are placed throughout the courses, averaging every 5 to 9 miles, and provide prepacked food and snacks. Aid service is touchless: volunteers will pour fluids into cups or place snacks on tables; there are no open food dishes. Scratch and Gu are listed as nutrition partners and plant-based options are available. The 30K and 50K include a roughly 9-mile section with only a water stop.
This event is cupless: runners must supply their own cup, bottle or bladder for aid stations. Official completion time limits are published for each distance: 10K 4 hours; 21K 6 hours; 30K 8 hours; 50K 10 hours (50K entrants must complete the 30K route within 6 hours to continue). Camping, RV sites, restrooms and showers are available at the park through Skyline Wilderness Park. Visit the organization's website for the most recent information.