The 1969 Major League Baseball postseason was the playoff tournament of Major League Baseball for the 1969 season. It was the first edition of the new playoff system introduced by the MLB, coinciding with the beginning of the "Divisional Era." Each league expanded from 10 teams to 12 teams, and were divided into two six-team divisions. The 162-game schedule stayed in place, but now each team played the other five teams in their own division 18 times each (90 games) and the six teams in their league's other division 12 times each (72 games). The winners of each division would advance to the postseason and face each other in a League Championship Series to determine the pennant winners that would face each other in the World Series.