Back in the 70's for a couple of years, the NY Council of AYH ran an event in Central Park called the Pepsi Marathon. Riders wore a paper/tyvek vest and did laps of the park getting stamped every time they crossed the start line. It went on for 24 hours and was the only time there has been legal camping with tents in the park! I believe John Howard entered one year with the intention of breaking the 24 hour mileage record. He had a team to pace him and carry food and water to him. In a preparation that I thought was a bit over the top, he also had himself catheterized so he wouldn't have to stop to pee.
Ridgewood, NJ USA