Tamalpa Headlands 50K

The Tamalpa Headlands 50K is a challenging ultramarathon held annually in Marin County, California, near San Francisco. The single-loop 50-kilometer course features approximately 6,500 feet of elevation gain and includes iconic trails such as Coastal, Miwok, Steep Ravine, Matt Davis, and Dipsea. Runners experience a mix of fast fire roads, steep climbs, flowy singletrack, and technical sections, all with stunning views of the Bay Area and Pacific Ocean.

The race starts and finishes at Santos Meadow near Muir Woods, which also hosts the after-party. The event is supported by the Tamalpa Runners club and offers a competitive prize purse. Visit the organization's website for the most recent information.