The 2012 Major League Baseball postseason was the playoff tournament of Major League Baseball for the 2012 season. The winners of the League Division Series would move on to the League Championship Series to determine the pennant winners that face each other in the World Series. This was the first expansion of the postseason since 1995. A new Wild Card Game was introduced as the opening round of the postseason, which features the #4 and #5 seeds of each league, and the winner faced the top seed in the LDS.