For the 1946 season, Williams hit .342 with 38 home runs and 123 RBIs, helping the Red Sox win the pennant on September 13. During the season, Williams hit the only inside-the-park home run in his Major League career in a September 1–0 win at Cleveland, and in June hit what is considered the longest home run in Fenway Park history, at and subsequently marked with a lone red seat in the Fenway bleachers. Williams ran away as the winner in the MVP voting. During an exhibition game in Fenway Park against an All-Star team during early October, Williams was hit on the elbow by a curveball by the Washington Senators' pitcher Mickey Haefner. Williams was immediately taken out of the game, and X-rays of his arm showed no damage, but his arm was "swelled up like a boiled egg", according to Williams. Williams could not swing a bat again until four days later, one day before the World Series, when he reported the arm as "sore". During the series, Williams batted .200, going 5-for-25 with no home runs and just one RBI. The Red Sox lost in seven games, with Williams going 0-for-4 in the last game. Fifty years later when asked what one thing he would have done different in his life, Williams replied, "I'd have done better in the '46 World Series. God, I would". The 1946 World Series was the only World Series Williams ever appeared in.