Marshall Ulrich
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Marshall Ulrich is an ultramarathon runner, adventure racer and mountaineer. He has completed over 116 ultramarathons, and has climbed the tallest summit on every continent, a feat known as the seven summits. He is arguably most famous for his exploits in the Badwater Ultramarathon, including a previous course record, completion of the event unaided, and the only completion of the Badwater Quad, two return trip of the race, completed back-to-back—a total distance of (uncertain)