MLB teams have overcome 3–1 deficits 14 times (including one 3–0 deficit), six of which occurred in the World Series. This does not count the 1903 World Series, during which the Boston Americans (or Puritans, or Pilgrims, depending on your source, and later known as the Red Sox) came back from a 3–1 deficit to defeat the Pittsburgh Pirates, five games to three, as that was a best-of-nine series.