The American League Championship Series (ALCS), also known as the American League Pennant, is a best-of-seven playoff and one of two League Championship Series comprising the penultimate round of Major League Baseball's (MLB) postseason. The winner of the ALCS wins the AL pennant and advances to the World Series, MLB's championship series, to play the winner of the National League's (NL) Championship Series. The ALCS began in 1969 as a best-of-five playoff and used this format until 1985, when it changed to its current best-of-seven format.
Boston Red Sox designated hitter David Ortiz jumps onto home plate after winning Game 4 of the 2004 American League Championship Series at Fenway Park
Houston Astros
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The Houston Astros are an American professional baseball team based in Houston. The Astros compete in Major League Baseball (MLB) as a member club of the American League (AL) West Division, having moved to the division in 2013 after spending their first 51 seasons in the National League (NL). They are one of two major league clubs based in Texas; the Texas Rangers belong to the same division.
1905 Houston Buffaloes team photo
Al Spangler, pictured in the first uniform of the Colt .45s in 1963
Houston Astrodome Scoreboard pictured during a June 7, 1969 game between the Astros and Cardinals
The Astrodome in 1965