The 1951 National League tie-breaker series was a best-of-three playoff series at the conclusion of Major League Baseball's (MLB) 1951 regular season to decide the winner of the National League (NL) pennant. The games were played on October 1, 2, and 3, 1951, between the New York Giants and Brooklyn Dodgers. It was necessary after both teams finished the season with identical win–loss records of 96–58. It is most famous for the walk-off home run hit by Bobby Thomson of the Giants in the deciding game, which has come to be known as baseball's "Shot Heard 'Round the World". Consequently, the Giants advanced to the 1951 World Series, in which they were defeated by the New York Yankees. In baseball statistics, the tie-breaker series counted as the 155th, 156th, and 157th regular season games by both teams; all events in the games were added to regular season statistics." The Dodgers rebounded to win the National League pennant in 1952, but lost the 1952 World Series to the Yankees four games to three. Thomson's dramatic three-run homer came in the ninth inning of the decisive third game of a three-game playoff for the pennant in which the Giants trailed, 4–1.