The 1924 World Series was the championship series of the 1924 Major League Baseball season. The 21st edition of the World Series was a best-of-seven playoff matching the American League (AL) champion Washington Senators against the National League (NL) champion New York Giants, with the Senators defeating the Giants in seven games to win their first championship in club history. This was the first major professional sports championship ever won by a Washington, D.C.-based team. Won the 1924 World Series on October 10, 1924. Wiki link