As competitive as the sport has always been, NASCAR has had very few dynasties. Yarborough's reign in the late 1970s, though, was one of them. His string of three consecutive Cup Series championships from 1976-78 was unprecedented -- and unmatched until 2008, when Jimmie Johnson was crowned champion for the third consecutive year. During his three-year dominance, Yarborough won 28 races -- nine in 1976, nine in '77 and 10 in '78. Yarborough totaled 83 victories in his 31-year career, and ranks fifth all time. And he won the Daytona 500 four times (1968, '77, '83-84), a mark that ranks second only to Richard Petty's seven.