Races›United States›California›Tamalpa Headlands 50K
Muir Beach, CA, seen from above
August 2027 · date to be announced

Tamalpa Headlands 50K

Muir Beach, California · United States
UltraCoastal100% trail

USATF 50K trail champs through the Marin Headlands

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Course

Starts and finishes at Santos Meadow, Muir Beach in the Marin Headlands. A single 50K trail loop with roughly 6,600 ft of climbing, run on steep singletrack and fire road including the Coastal, Miwok, Matt Davis and Dipsea trails. Aid stations are provided on course.

50K50 km

Key dates

Provisional date, projected from last year — the organiser has not announced this edition yet. We show the month only.

About

The Tamalpa Headlands 50K is a rugged coastal trail race through the Marin Headlands above Muir Beach, serving as the USATF 50K Trail Championships. Runners climb steep coastal bluffs with sweeping Pacific views near Mount Tamalpais.

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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.