In the 1921 World Series, the New York Giants beat the New York Yankees five games to three. This was the last of the experimental best-five-of-nine series. his was the only Series prior to the 1955 World Series (Brooklyn Dodgers over New York Yankees) where a team losing the first 2 games went on to win the Series For the first time in World Series play, all games were held at one site: the Polo Grounds in New York, with the home team alternating. The Yankees sub-leased the Polo Grounds from the New York Giants from 1913 through 1922.