High Quality Content by WIKIPEDIA articles! The 1951 National League tie-breaker series was a best-of-three playoff to decide the winner of Major League Baseball`s (MLB) National League (NL) pennant. The games occurred 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 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".