List of Major League Baseball annual wins leaders

Grover Cleveland Alexander led the National League in victories six times, with a single-season career-high 33 wins in 1916.

[5] In the American League, two pitchers have accomplished the same feat: Walter Johnson, whose 36 wins in 1913—his first season leading the league—were a single-season career high,[6] and Bob Feller.

[8][9] Pitchers who have led their league four times include Steve Carlton,[10] Roger Clemens,[11] Christy Mathewson,[12] Hal Newhouser,[13] and Robin Roberts.

[14] Charles "Old Hoss" Radbourn holds the single-season record for the most games won in a major league season; he notched 59 victories in 1884.

The most pitchers to share the title in a single season is six, accomplished in 2006 when Aaron Harang, Derek Lowe, Brad Penny, John Smoltz, Brandon Webb, and Carlos Zambrano each won 16 games in the National League.

Dennis McLain, 1968 American League wins leader, with 31; this was the last time a pitcher has won thirty.
Bob Feller: six time AL Wins Champion
Charles Radbourn holds the Major League single-season record for most games won.
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Tommy Bond won the triple crown in 1877, leading the National League in wins, strikeouts , and earned run average .
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Grover Cleveland Alexander led the National League in wins six times in ten seasons.
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Hall of Famer Joe McGinnity captured the National League win championship five times.
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Kid Nichols led the National League in wins three consecutive seasons (1896–1898).
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Robin Roberts led the National League in wins four years in a row (1952–1955).
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Hall of Famer Sandy Koufax led the NL in wins three times before retiring at the age of 30.
Jake Peavy's 19 wins in 2007 led all National League pitchers.
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2006 Cy Young Award winner Brandon Webb led the National League with 22 wins in 2008.
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Adam Wainwright (19 wins) and St. Louis Cardinals teammate Chris Carpenter (17 wins) were first and second in the 2009 win table, respectively.
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Addie Joss led the American League in wins in 1907.
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In addition to leading the American League in wins six times in his career and winning three triple crowns , Walter Johnson was one of the five charter members of the Baseball Hall of Fame . [ 172 ]
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Joe Wood's 34 wins in 1912 were a career-high. [ 173 ]
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Roger Clemens won the most American League games in 1986 & 1987 for the Red Sox and 1997 & 1998 for the Blue Jays .
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Dave Stewart won 20 games in 1987, finishing second in AL wins the following three seasons.
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Josh Beckett's 20 wins in 2007 were best in the American League.
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Cliff Lee captured the Cy Young Award in 2008 in addition to winning 22 games.
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Félix Hernández won 19 games in 2009, one of three pitchers to do so.
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CC Sabathia started Game 1 of the 2009 World Series after winning 19 games for the Yankees that season.
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Justin Verlander also led the American League in strikeouts and innings pitched in 2009.
Johan Santana, 2006 AL Triple Crown winner
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Claude Hendrix led the Federal League with 29 wins in its inaugural season.