The 1923 World Series was the championship series in Major League Baseball for the 1923 season. The 20th edition of the World Series, it matched the American League champion New York Yankees against the National League champion New York Giants. The Yankees beat the Giants in six games. This would be the first of the Yankees' 27 World Series championships (as of 2022). The series was not played in a 2–3–2 format: as with the previous two Series (where both clubs had shared the Polo Grounds) the home field alternated each game, though this time it involved switching ballparks, as the first Yankee Stadium had opened this season.