The best of seven game series played annually to determine the championship of professional baseball in the United States and Canada, played between the National League and the American League
playoff championship series of baseball games played between the winners of the American League and the National League
A series of baseball games played each fall between the winning teams of the American League and the National League to decide the championship of the major leagues. a set of up to seven baseball games played between two teams, the winner of the American League, and the winner of the National League. Annual championship of U.S. major league baseball, played between the top team of the American League (AL) and that of the National League (NL). First held in 1903, it was canceled the following year after the New York Giants (NL) refused to play Boston (AL). The series resumed in 1905 and continued annually until a players' strike in 1994 forced its cancellation that year. A seven-game series has been standard since 1922