Completed the following sentence: The 1903 Major League Baseball season was contested from April 16 through October 13, 1903. The Pittsburgh Pirates and the Boston Americans were the regular season champions of the National League and American League, respectively. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️
World Series, five games to three. (World Series, five games to three)