Cy Young holds the MLB win record with 511; Walter Johnson is second with 417. Young and Johnson are the only players to earn 400 or more wins. Among pitchers whose entire careers were in the post-1920 live - ball era, Warren Spahn has the most wins with 363. Only 24 pitchers have accumulated 300 or more wins in their careers. Roger Clemens is the only pitcher with 300 wins or more not elected to the National Baseball Hall of Fame.
most wins by a pitcher in major league baseball
Cy Young holds the MLB win record with 511