Ruth was an amazing guy. People know him for his batting records, which have been cheapened some by a juiced ball and juiced players. But he broke in as a pitcher, and was one of the best in the game.
In 1916, after a slightly shaky spring, he went 23–12, with a 1.75 ERA and nine shutouts, both of which led the league. On June 27, he struck out ten Philadelphia A's, a career high. On July 11, he started both games of a doubleheader, but the feat was not what it seemed; he only pitched one-third of an inning in the opener because the scheduled starter, Foster, had trouble getting loose. Ruth then pitched a complete-game victory in the nightcap. Ruth had unusual success against Washington Senators star pitcher Walter Johnson, beating him four times in 1916 alone, by scores of 5–1, 1–0, 1–0 in 13 innings, and 2–1. Johnson finally outlasted Ruth for an extra-inning 4–3 victory on September 12; in the years to come, Ruth would hit ten home runs off Johnson, including the only two Johnson would allow in 1918–1919. Ruth's nine shutouts in 1916 set an AL record for left-handers which would remain unmatched until Ron Guidry tied it in 1978.
In 1917 Ruth was 24-13, with a 2.01 era.
The left-hander was pitching a no-hitter in a 0–0 game against the Detroit Tigers on July 11, before a single deflected off his glove in the eighth inning. Boston finally pushed across a run in the ninth, and Ruth held onto his 1–0 victory by striking out Ty Cobb. In 1942, Ruth called this game his greatest thrill on the field.
In 1918, Ruth pitched in just 20 games, posting a 13–7 record with a 2.22 ERA.
Ruth threw a 1–0 shutout in the opener of the 1918 World Series, then won Game Four in what would be his final World Series appearance as a pitcher. Ruth won both his starts, allowing two runs (both earned) in seventeen innings for an ERA of 1.06. Ruth extended his World Series consecutive scoreless inning streak to 29⅔ innings, a record that would last until Whitey Ford broke it in 1961.
http://en.wikipedia.org/wiki/Babe_RuthIn addition to his 20 starts in 1918, he had 317 AB's, hitting .300, with a league leading 11 home runs, and when he went to the Yankees, they decided his bat was more valuable than his glove. Still, a World Series ERA of 1.06 is not too shabby.