sentences:  Arguably most famous for his exploits in the Badwater Ultramarathon across Death Valley, Ulrich has finished the race 18 times and crossed Death Valley a record 24 times, including a 586-mile "Badwater Quad", covering the course four times (twice up and back), and a self-contained, unaided solo, in which he pulled all supplies (food, ice, medical) in a cart that weighed more than 200 pounds at the start.He won the Badwater 146-mile race from the Badwater Basin at to the summit of Mount Whitney at an unprecedented 4 times and still holds the record to the summit.