xBABIP
June 2nd, 2010 by czar

Where do you get those super-cool xBABIP numbers from?

Oddly, it’s not a stat that I’ve seen any site post as part of their stats pages.

You can get a spreadsheet from The Hardball Times that uses absolute numbers. This one’s pretty sweet but I find it a pain to use when I just want quick xBABIP numbers.

For “back of the envelope” calculations I use a multiple regression spreadsheet based on rates from Beyond the Boxscore most of the time because I’ve modified the file (here it is, with a couple example players) so that I need to copy LD%/GB%/FB%/IFFB%/HR/FB/IFH% in one fell swoop from a player’s Fangraphs page. It’s an ODS file, so Open Office opens it. I think some versions of Excel (2007 SP2 and 2010) do as well, but my Mac (2008) does not.

Depending on how you do the regression and what variables you use the xBABIP values will be a little different between spreadsheets (e.g., THT uses SB as a measure of “speed” and BTB uses IFH%). I haven’t found any that vary by more than .010 for most batters though, so both should be good enough.

Posted in Message Board Ramblings


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  • Traversing the land that is known as Red Sox Nation, The Czar Who Wears Red Sox is an attempt at compiling a repertoire of my ever-so-sexy forum posts (when I'm too lazy to write my own damn entry) and other random baseball thoughts that strike. For those whose posts serve as the inspiration of my epiphanies and rants, do not be angry, but merely, be honored that you have achieved such status. Names will never be revealed. Feedback appreciated, as this is a work in progress.

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