Babe Ruth previously a star pitcher with a 25–4 win–loss record for Detroit in 1907; in later years, he credited Donovan with teaching him much about pitching. Ruth was often called upon to pitch, in one stretch starting (and winning) four games in eight days. On September 5 at Maple Leaf Park in Toronto, Ruth pitched a one-hit 9–0 victory, and hit his first professional home run, his only one as a minor leaguer, off Ellis Johnson. Recalled to Boston after Providence finished the season in first place, he pitched and won a game for the Red Sox against the New York
Babe Ruth tight pennant race with Cleveland, winners of the 1920 World Series. On September 15, Ruth hit his 55th home run, shattering his year-old single season record. In late September, the Yankees visited Cleveland and won three out of four games, giving them the upper hand in the race, and clinched their first pennant a few days later. Ruth finished the regular season with 59 home runs, batting .378 and with a slugging percentage of .846. The Yankees had high expectations when they met the New York Giants in the 1921 World Series, every game of which was played in the