Muir Woods Marathon
Stinson Beach, United States • 9 May 2026
Event
The 36th annual Stinson Beach/Muir Woods trail races take place on May 9, 2026 at the Stinson Beach parking lot in Stinson Beach, California. The field is limited to 300 participants. Distances offered:
- Marathon
- Half Marathon
- 7 Mile
Course and logistics
The course leaves Stinson Beach and climbs into the wooded trails of Muir Woods, following the Dipsea trail to Steep Ravine. Features include a wooden ladder, natural rock and wooden staircases, sections that require scrambling under tree trunks, brooks, waterfalls, and redwood and oak forest. The route returns to Stinson Beach with panoramic views on the descent. The course is marked with orange ribbon. The 7 Mile runners turn at the first aid station; half marathoners and marathoners complete a loop, marathoners repeat the loop plus an additional out-and-back. Aid stations are located at miles 3.8, 7.5, 10.5, 14.2, 17.2, and 22.2. Participants are advised to carry water. Course cut-off is 6.5 hours; hikers and walkers are welcome.
Entries, race day items, and rules
Bibs are mailed beginning two weeks before the event; unreceived bibs can be picked up at the start/finish area on race morning. T-shirts are provided to all participants. Finisher medals are given to full and half marathon finishers. Personalized award ribbons for top three finishers by age group are mailed after the race. Parking is available at Stinson Beach Park. Headphones and other audio devices are not allowed on course. Visit the organization's website for the most recent information.