Rim Rock 50 Mile Trail Challenge
Always double-check with the organizer's website! This page may contain affiliate links.
Event Overview
The Rim Rock 50 Mile Trail Challenge is scheduled for May 16, 2026. The event is based at Skyline Wilderness Park in Napa, California. It offers a 50 mile solo distance and a 50 mile relay option for teams of two.
Course and Terrain
The course consists of two rugged loops, each approximately 26 miles. The route travels through Skyline Wilderness Park, the Napa Open Space Preserve, and the Suscol Headwaters Trail system. Runners can expect a mix of terrain, including shaded oak forests and exposed ridgelines. The total course has a 13-hour time limit. The route may be modified prior to the event due to trail conditions.
Logistics and Amenities
The event start area is at Skyline Wilderness Park. Camping is available on-site from May 15–17, 2026. Aid stations will provide snacks, fruit, and hydration. A post-race meal, including burrito wraps and salads, will be available for participants. The event is cupless; all runners must bring their own reusable cup or hydration system.
Participant Details
All registered runners receive a dry-wick T-shirt. Solo finishers and relay team members receive a finisher's trucker hat. Crew access is permitted only at the start/finish area and the Lake Marie Aid Station. Pacers are allowed only for solo runners, and only for the final 25-mile loop. Visit the organization's website for the most recent information.
