Prime years are 26-29. I don't see how it's arbitrary to say a player who is 31 is past his prime. Soriano has an OPS+ of 126 right now, below what he had at 26, 27 and 30. Prime years are not static for everybody, it goes back to what Have a seat, Neifi! was talking about. His OPS+ for this year is trivially lower than a couple years past, especially considering the difference in OBP making up any difference in league/park factor. The point is that Soriano is playing just as well as he has at any point in his career(again, look to last year's numbers at the break), I don't see how you can say he's past his prime just because he's 31. Also, 26-29 isn't universally accepted as the normal prime years either, ranges from 28-32 have also been cited. OK. Let's not lose sight of the point here. Whether the prime is 26-29 or 28-32 Soriano, Lee, and Aramis are not "entering" their prime they are "leaving" their prime. I never said they were "entering" their prime. I said that 31 wasn't necessarily past their prime.