Not true at all Aramis has not had a huge home/away split, and really its gone back and forth, he isn't definitively better at one place or the other. He has only really been much better at home for the last year and a half, before that he was better on the road. So your statement that Wrigley is what made him a better player is wrong. YEAR: HOME-(AVG/OBP/SLG/OPS), ROAD-(AVG/OBP/SLG/OPS) 2004: H-(.315/.377/.623/.999), R-(.321/.369/.538/.907) 2005: H-(.285/.340/.498/.838), R-(.318/.374/.632/1.006) 2006: H-(.291/.350/.535/.886), R-(.292/.352/.583/.936) 2007: H-(.337/.403/.643/1.046), R-(.283/.326/.454/.780) 2008: H-(.310/.417/.574/.991), R-(.268/.366/.408/.774) Career as a Cub excluding 2003 04-08: H-(.311/.383/.579/.962), R-(.299/.352/.542/.894) So sure he's been better at home, but it's not a big enough split to say that his success and improvement were because of playing at Wrigley. It's more likely because he entered his prime when he came to the Cubs and is probably more comfortable playing at home, which I would assume all players are.