What pitcher holds the record for the most wins in a baseball season?

Answer by  AMSR (14)

Jack Chesbro, pitcher for the New York Highlanders (the forerunners of the contemporary New York Yankees) holds the current record for most wins in a baseball season. His record was 41-12. Greg Maddox's best season (if we are evaluating him solely in terms of number of wins) was the 1992 season (his record was 20-11).

Answer by  Jon65 (787)

Jack Chesbro, who pitched for the New York Giants in 1904 won 41 games in 1904. Chesbro won the most games ever in modern professional baseball. He was voted in the Hall of Fame in 1946.