Those are infield hit percentages, meaning balls fielded without error and no out recorded. BABIP on ground balls will be higher. Heck, Mauer's was .285 last year, although I don't know what Revere's was. But, that reminds me of another peanut stat - reaching base on error, where Revere had 8, Aoki had 13. Mauer had 4, Willingham had 5, by comparison. Just another marginal benefit of speed that doesn't even get factored into BAv or OBP, although they are obviously recorded as at-bats. Water over the dam at this point, I guess, but what you said doesn't make sense. 10.8% IS Revere's batting average on ground balls in play. Honest. 295 ground balls(!) times 10.8% equals Ben Revere's infield hit total of 32, not including bunt hits. And I'd wager that nobody in the history of the league has converted ground balls into hits at a .285 clip. Mauer only managed to beat out about 3% of his grounders for infield hits. So again, Revere isn't due for a breakout solely on the basis of a disparity between his speed and his BABIP. He is, however, going to lose a big chunk of his value the very minute that he loses just one ounce of speed, since he's already close to maxing out his potential for getting on base when he hits the ball on the ground. That said, he's a good player, and I wish him well in Philly.