Most baseball fans are aware of the fact that Babe Ruth spent the early part of his career as a pitcher. By the time the Yankees acquired him, he was spending most of his playing time in the outfield. However, he still threw over 100 innings in his final season with the Red Sox in 1919. He was decent on the mound that year, but by that point it had become clear that he was an otherworldly hitter and that’s where his future was.
When Ruth came to the Yankees in 1920, he made the switch full time.