50 miles50KComing SoonInside Trail Racing
Marin Ultra Challenge
Sausalito, California
188
Days Away
About This Race
A premier Marin County long distance trail race delivering ample hills and sweeping descents. The 50 Mile has just about 11,000 feet of elevation gain, traversing the Marin Headlands, Stinson-facing Mt. Tamalpais and Muir Woods with a range of terrain from exposed fire-roads with incredible coastal and inland views to tight, technical single-track with redwood canopies.
Key Dates
Race Day
Mar 13, 2027
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