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Tamalpa Headlands 50K

Mill Valley, United States • 16 Aug 2025

The Tamalpa Headlands 50K is a challenging ultramarathon held near Sausalito, California, featuring a single-loop course through Marin County's iconic trails such as Coastal, Miwok, Steep Ravine, Matt Davis, and Dipsea. The race covers 50 kilometers with approximately 6,500 feet of elevation gain, combining fast fire roads, steep climbs, technical singletrack, and stunning views of the Bay Area and Pacific Ocean. The start and finish are at Santos Meadow, near Muir Woods, which also hosts the post-race celebration. The event is the official USATF Trail 50K Championship and offers well-stocked aid stations along the route. It emphasizes environmental care, including a cup-free policy and respectful trail use. Visit the organization's website for the most recent information.

United States California Mill Valley

Race information

Website
50 km
6500 m+
50k
Visit the organization's website for the most recent information.
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