The 1924 major league baseball season began on April 15, 1924. The regular season ended on September 30, with the New York Giants and Washington Senators as the regular season champions of the National League and American League, respectively. The postseason began with Game 1 of the 21st World Series on October 4 and ended with Game 7 on October 10. The Senators defeated the Giants, four games to three.
The 1924 schedule consisted of 154 games for all teams in the American League and National League, each of which had eight teams. Each team was scheduled to play 22 games against the other seven teams of their respective league. This continued the format put in place since the 1904 season (except for 1919) and would be used until 1961 in the American League and 1962 in the National League.
Opening Day, April 15, featured all sixteen teams, for the first time since 1922. The National League would see its final day of the regular season on September 29, while the American League would see its final day of the regular season the following day with a game between the Washington Senators and Boston Red Sox. The World Series took place between October 4 and October 10.