No, they are not. That is a difference. And it's more pronounce if you look at the past 2 years, which is more important when talking about guys already in their mid-to-late 30's (Grudz). From 2003-2005 Brian Giles OPS was 896, Andruw Jones was 868, a tighter difference than Walker and Grudz. But Giles outproduced him each year and out OPS+ him each year. Giles has been the better hitter. They are not essentially the same. Just because a guy is relatively close to another guy, it doesn't mean he's the same. If one guy outproduces the other guy each year, he is better. And in Walker's case, he's also younger. I think, to go back to my original point, Jones and Grudz are both as good of players as the two they are being compared to. Personally, I'll take much better defense for about .030 OPS. If you don't like range factor and zone rating, find some other defensive stats that compare any of these four players, and I'll read it. It's not as simple as .030. OPS+ is adjusting for the parks the players play in. Last year, Busch was more of a hitter's park than Wrigley making the .088 even more impressive. Walker has a .020 OPS advantage this year, and park factors likely play a factor there as well as Kaufman is a much more favorable hitter's park. Home/Away splits: Grudz is at 929/679, Walker is at 882/740. They are not interchangeable parts.