Miwok 100K
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Event Overview
The Miwok 100K is a 62-mile (100-kilometer) trail ultramarathon presented by The North Face. The race is held in Marin County, California, starting in Stinson Beach.
Course Details
The route is set in the Marin Headlands and includes over 11,000 feet of elevation gain. The course travels through varied landscapes including redwoods, ridgelines, and coastal cliffs. The event has a time limit of 15 hours and 30 minutes, with intermediate cutoff times.
Registration & Participation
Registration has a field limit of 400 runners. The race for the current year is noted as sold out. Registration for a future edition opens on November 9, 2025. Priority registration for the following year's race is available for volunteers who complete at least 8 hours of service.
Event Features
The event is a cup-less, low-waste race. It is a qualifier for the Western States 100-Mile Endurance Run and a UTMB 2026 Index Race at the 100K level. The race operates with aid stations providing professional medical care and supports initiatives focused on sustainability and expanding access to trail running. Visit the organization's website for the most recent information.
