Tamalpa Headlands 50K
Always double-check with the organizer's website! This page may contain affiliate links.
Tamalpa Headlands 50K - 27th Annual
The Tamalpa Headlands 50K takes place on Saturday, August 15, 2026. The event is presented by Arc'teryx and Tamalpa Runners and is part of the USATF PA Grand Prix. The start and finish are at Santos Meadow, Muir Beach, California, with an after-party at the same location.
The course follows several Marin County trails including Coastal, Miwok, Matt Davis and Dipsea. The route covers approximately 50K and includes about 6,600 feet of elevation gain. Runners encounter steep climbs, fast descents and flowy singletrack, with open views of the Bay Area and the Pacific Ocean on clear days.
The event was originally founded in 1995 as the Pt. Reyes 50K and was reimagined as the current course in 1998. The organizers state that this race will not host the 2026 USATF 50k Trail Championship, but it will remain in the USATF PA Grand Prix series.
A total purse of $10,000 is offered for podium finishers, with first place awarded $2,500 for each gender, second place $1,500, and third place $1,000. Course records listed are 3:37:20 for male and 4:20:51 for female. Visit the organization's website for the most recent information.
