Yes according to Moneyball, but no according to the heart and emotion that comes with late inning hits. My vote is yes it is a myth but I think that late hits carry more emotion. The emotion, however, shouldn't take away from everything else that happened in the previous 8 innings of the game. Let's say the third baseman makes a super catch to save 2 runs and potentielly more but because he made that out the inning was over and it enabled the team to be in the "clutch" situaiton. Meanwhile, that gets lost as being "clutch" in the shuffle, when without that play the clutch hit wouldn't have even been possible. There are so many things that go into winning a baseball game that I think it's unfair to point to a game winning hit as the most crucial play in a game. Good players, like Ortiz and Jeter and Rivera, are spectacular to begin with, so I don't really think it's necessary to label their greatness as something else when it shows in the 9th inning. But human emotions are powerful and people are going to get carried away by them and say "LIKE OMG ORTIZ IS SO CLUTCH AHH I WANT HIS BABIES" and there's really nothing wrong with that. Just my opinion.