According to the Guinness Book of World Records, in 2013 British rider Paul Oughton piloted a Yamaha YZ250 around Rogershill Raceway for 24 hours, racking up 351.5 miles in the process. The mileage isn’t close to that of Bushy’s road course record (see #2), but Oughton basically rode 48 back-to-back motos, or two entire motocross seasons in 24 hours.