Ricky Carmichael has more combined AMA Supercross and AMA Motocross National wins than any other rider in history. From 1997 to 2006, Carmichael won a championship series title each year. Known as the Greatest of All Time, Carmichael has re-written the record books in the sport of AMA Motocross. In 2002, Carmichael recorded the first perfect season in AMA motocross history by earning 24 straight moto victories for 12 overall wins in the premier class -- a feat he repeated in 2004. When he retired, he had 150 AMA National wins. Watch Carmichael's acceptance speech here: