<P> The American League Championship Series ( ALCS ) is a best - of - seven series played in October in the Major League Baseball postseason that determines the winner of the American League ( AL ) pennant . The winner of the series advances to play the winner of the National League ( NL ) Championship Series ( NLCS ) in the World Series , Major League Baseball 's championship series . </P>
<P> The American League Championship Series ( ALCS ) is a best - of - seven series played in October in the Major League Baseball postseason that determines the winner of the American League ( AL ) pennant . The winner of the series advances to play the winner of the National League ( NL ) Championship Series ( NLCS ) in the World Series , Major League Baseball 's championship series . </P>
who does the winner of the alcs play
who does the winner of the alcs play
winner of the National League ( NL )
winner of the National League ( NL )