Do you remember how to calculate a Major League pitcher's career winning percentage? See the pitching statistics page for a refresher on that and many other pitching statistics.
Pedro Martinez, who only became eligible for the career leaders for winning percentage chart after the 2000 regular season, took over the number two position during his first year and has not lost it since that season.
Cy Young, who is the all time wins leader and the all time loss leader, makes the chart here at number sixty-eight. New to the list in 2004 was Bartolo Colon who debuted at fifty-seventh then climbed to forty-sixth in 2005. New to the list in 2005 is Barry Zito who debuted at sixty-sixth & Mark Buehrle who debuted at seventy-second — welcome aboard.