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List of American League pennant winners

Every Major League Baseball (MLB) season, one American League (AL) team wins the pennant, signifying that they are the league's champion and have the right to play in the World Series against the champion of the National League (NL). The pennant was presented to the team with the best win–loss record each year through the 1968 season, after which the AL Championship Series (ALCS) was introduced to decide the pennant winner. The first modern World Series was played in 1903 and, after a hiatus in 1904, has taken place every season except 1994, when a players' strike forced the cancellation of the postseason. The current AL pennant holders are the Toronto Blue Jays, who beat the Seattle Mariners for the pennant on October 20, 2025.

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Calvin Coolidge shakes hands with Washington Senators pitcher Walter Johnson celebrating the Senators' 1924 American League pennant, one of three won by the franchise while in Washington.|alt=Two men stand in front of a crowd shaking hands. The man on the left of the photo is wearing a tan suit and hat and the man on the right is wearing a light-colored pinstriped baseball uniform. ==Single table era (1901–1968)==
Single table era (1901–1968)
==League Championship Series era (1969–present)==
League Championship Series era (1969–present)
;Notes • A mid-season labor stoppage split the season into two halves. The winner of the first half played the winner of the second half in each division in the 1981 American League Division Series. The winners played in the 1981 ALCS for the American League pennant. the team was commonly referred to simply as "Los Angeles Angels", which they changed back to in 2016. ==Pennants won by franchise==
Pennants won by franchise
;Notes • Also known as New York Highlanders. In addition to their 41 official pennants, the Yankees had the best record in the American League when the 1994 season was cut short by a labor dispute. • Also known as Kansas City Athletics, Philadelphia Athletics, and Oakland Athletics. • Also known as Boston Americans. • Also known as St. Louis Browns and Milwaukee Brewers. This does not refer to the New York Yankees, who were known as the Baltimore Orioles in 1901 and 1902. • Also known as Washington Senators from 1901 to 1960 as called the Nationals from 1905 to 1955. • Also known as Cleveland Bluebirds (Blues), Cleveland Bronchos, Cleveland Naps, and Cleveland Indians. • Also known as Washington Senators from 1961 to 1971. • Also known as Houston Colt .45's from 1962 to 1964. This does not include one National League pennant and nine playoff appearances. • Also known as Anaheim Angels, California Angels, and Los Angeles Angels of Anaheim. • Also known as Tampa Bay Devil Rays. • Also known as Seattle Pilots in 1969. The Brewers were members of the American League through the 1997 season after which they switched to the National League. This table records only the Brewers' American League accomplishments. ==See also==
Source: Wikipedia ↗
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