If you haven't checked out our series of articles on an effect called the @home bias, you should give it a read over the holiday break (or this morning instead of doing your job). After a Twitter conversation with @ngreenberg and @SWhyno last night, we decided to update our data for the Hits category.
What you see below is fairly self-explanatory. The second to the last column is the important one as it tells you the hit differential per game for 2011-2012: meaning, how many more hits/game does a team record at home compared to on the road. The results are sorted in such a way that the teams at the top exhibit a large, positive @home bias (more hits at home) and the teams at the bottom exhibit a large, negative @home bias (more hits on the road).
Many of the teams that exhibited a particular bias last season are revealing a similar bias so far this season. You can see last year's bias in the last column in the table above (LY Hit Diff). There is one major exception here: the Washington Capitals. Last season, their @home bias was less than 2.0 (they recorded somewhere between 1-2 extra hits/game during home games). This season (as of Dec 21, 2011), they are recording 12.8 extra hits/game at home! Makes you wonder if the Capitals got a new scorekeeper.