runs, In 1912, he batted .284 with six home runs. His 109 runs batted in (RBIs) were the second-most in the league. The Red Sox won the American League championship, and defeated the New York Giants in the 1912 World Series in eight games. Lewis batted .188 (6-for-32) in the series. In 1913, Lewis batted .298 with no home runs. Babe Ruth made his major league debut on July 11, 1914, and Lewis pinch hit for Ruth during the game. He was the only player to pinch hit for Ruth during the latter's major league career. Lewis finished the 1914 season with a .278 batting average. In 1915, Lewis batted .291 with 31 doubles, which was the second-most in the league. The Red Sox faced the Philadelphia Phillies in the 1915 World Series, and won in five games. Lewis batted .444 (8-for-18) against the Phillies. He also recorded five out of the 12 RBIs in the series for Boston. He drove in the game-winning runs in both Games 3 and 4, and made several catches that helped Boston win the series. After the World Series, Lewis returned to the San Francisco Bay Area, where he performed vaudeville shows at the Pantanges Theatre in Oakland for $500 a week ($ in current dollar terms). The Red Sox traded Speaker to the Cleveland Indians in 1916, and Boston manager Bill Carrigan experimented with playing Lewis in center field before returning him to left field. The Red Sox repeated as American League champions in 1916, with Lewis batting .268. In the 1916 World Series, the Red Sox defeated the Brooklyn Robins in five games; Lewis batted .353 (6-for-17). Lewis batted .302 for the Red Sox in 1917; it was the ninth-highest batting average in the league that season. Later playing career Lewis did not play for the Red Sox during the 1918 season due to his service in the United States Navy during World War I. He enlisted as a yeoman and was stationed at the Mare Island Naval Shipyard, where he was the player-manager for the shipyard's baseball team. He became a chief petty officer before the end of his service. On December 18, 1918, the Red Sox traded Lewis, along with Dutch Leonard and Ernie Shore, to the New York Yankees for Ray Caldwell, Frank Gilhooley, Slim Love, Roxy Walters and $15,000 ($ in current dollar terms). He batted .272 with