<P> The 2012 American League Division Series between the Baltimore Orioles and the New York Yankees had back - to - back extra inning games, going 12 and 13 innings respectively . The Yankees won Game 3 on a walk - off home run by Raúl Ibañez and the Orioles returned the favor the next night by winning Game 4 . </P> <P> In the 1995 American League Division Series, the Seattle Mariners and Yankees battled in Game 2 in 15 innings . The Yankees won the game on a two - run walk - off home run by Jim Leyritz, setting the record for longest game in MLB postseason history by time until 2005 . In Game 5, the Mariners won the game and the series in 11 innings on Edgar Martínez's famous double that scored Ken Griffey Jr . Until 2011, this was the only LDS game 5 in either league to go into extra innings . </P> <P> The 2014 American League Wild Card Game featured the first extra inning game in just its third year of postseason existence, was won by the Kansas City Royals over the Oakland Athletics in 12 innings . </P> <P> The longest "winner take all" game (defined as the final game of a postseason series, in which the winning team clinches the title or advances to the next round while the loser is eliminated from the postseason) in MLB postseason history is Game 7 of the 1924 World Series, won by the Washington Senators over the New York Giants in 12 innings . </P>

How many world series games have went into extra innings