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Marin Ultra Challenge

Sausalito, United States • 8 Mar 2025

The Marin Ultra Challenge is a premier long-distance trail race held in Marin County, California, featuring 50-mile and 50K events. Set against the stunning backdrop of the Marin Headlands, Mt. Tamalpais, and Muir Woods, the race showcases a variety of terrains, including technical single-track trails and scenic fire roads.

Participants can expect significant elevation gains, with the 50-mile course featuring approximately 11,000 feet of ascent. The event emphasizes sustainability by being cupless, requiring runners to carry their own hydration solutions. With a capacity of 450 runners, the Marin Ultra Challenge promises a challenging yet beautiful experience for trail running enthusiasts. Visit the organization's website for the most recent information.

United States California Sausalito

Race information

Website
50 mi
10550 m+
50 Mile
50 km
6000 m+
50k
Visit the organization's website for the most recent information.
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