Marin Ultra Challenge

The Marin Ultra Challenge is a premier long-distance trail race held in Marin County, California, featuring a 50-mile and a 50K course. Celebrating its 11th edition, the event showcases the stunning landscapes of the Marin Headlands, Mt. Tamalpais, and Muir Woods, with challenging elevation gains of approximately 11,000 feet for the 50-mile race.

Runners experience a variety of terrains, from coastal fire roads to technical single-track trails. The event promotes sustainability by being cupless, requiring participants to carry their own hydration. Awards are given for top finishers, and all participants receive a custom medal. Visit the organization's website for the most recent information.