List of 30-win seasons
in Major League Baseball
Updated: June 2025
List of every 30-win season by Major League Baseball pitchers since 1900. In the 1800s, numerous pitchers won 30 games in a single season. Sourced from baseball-reference.com
1904: Jack Chesbro (R), New York Highlanders — 41 (454.2 innings pitched)
1908: Ed Walsh (R), Chicago White Sox — 40 (464 innings pitched)
1908: Christy Mathewson (R), New York Giants — 37 (390.2 innings pitched)
1913: Walter Johnson (R), Washington Senators — 36 (346 innings pitched)
1904: Joe McGinnity (R), New York Giants, — 35 (408 innings pitched)
1912: Smoky Joe Wood (R), Boston Red Sox, — 34 (344 innings pitched)
1916: Grover Alexander (R), Philadelphia Phillies — 33 (389 innings pitched)
1912: Walter Johnson (R), Washington Senators — 33 (369 innings pitched)
1904: Christy Mathewson (R), New York Giants — 33 (367.2 innings pitched)
1901: Cy Young (R), Boston Red Sox, — 33 (371.1 innings pitched)
1902: Cy Young (R), Boston Red Sox, — 32 (384.2 innings pitched)
1915: Grover Alexander (R), Philadelphia Phillies, — 31 (376.1 innings pitched)
1920: Jim Bagby (R), Cleveland Indians, — 31 (339.2 innings pitched)
1910: Jack Coombs (R), Philadelphia Athletics, — 31 (353 innings pitched)
1931: Lefty Grove (L), Philadelphia Athletics — 31 (288.2 innings pitched)
1905: Christy Mathewson (R), New York Giants — 31 (338.2 innings pitched)
1903: Joe McGinnity (R), New York Giants, — 31 (434 innings pitched)
1968: Denny McLain (R), Detroit Tigers — 31 (336 innings pitched)
1917: Grover Alexander (R), Philadelphia Phillies, — 30 (388 innings pitched)
1934: Dizzy Dean (R), St. Louis Cardinals — 30 (311.2 innings pitched)
1903: Christy Mathewson (R), New York Giants — 30 (366.1 innings pitched)
