Gold Country and Headlands Half Training Run

Mill Valley, United States • 4 Oct 2025

The Women's Headlands Half Marathon is a trail running event held in the scenic Marin Headlands near Mill Valley, California. This race features a brand-new half marathon course that highlights the area's stunning singletrack trails, challenging climbs, and exhilarating descents, offering runners a mix of grit and grace. The course begins and ends at the San Francisco Running Company store, fostering a strong sense of community among participants. Now in its third year, the event showcases some of Marin's most iconic terrain, providing a rewarding experience for trail runners. Volunteers support the race through aid stations and course monitoring. Visit the organization's website for the most recent information.

Race information

21 km
Half Marathon
Visit the organization's website for the most recent information.
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