MLB altered its playoff structure in 1969 and established the League Championship Series. The LCS is a showdown between the winners of the Division Series to determine which team will represent its respective league - American League and National League - in the World Series. Baseball expanded both the ALCS and NLCS in 1985, from a best-of-five series to a best-of-seven format.
Here's a look at notable stats from ALCS history:
Franchise with the most appearances
New York Yankees, 18
Franchise with the most games
New York Yankees, 94
Franchise with the most wins
New York Yankees, 50
Franchise with the most series wins
New York Yankees, 11
Franchise with the fewest series wins
Seattle Mariners, 0 (reached the ALCS in 1995, 2000 and 2001)
Player with the most games
Derek Jeter, 54
Player with the most at bats
Derek Jeter, 226
Player with the highest batting average
Fred Lynn, .