Suggestions and Questions

Now that the new version of the Saber Library is up and running, I’d like this to be more than just a reference site: I want this to be an area where people can come and have their questions about sabermetrics answered. If you ever have any questions about a sabermetric principle or statistic, please reach out to me on Twitter (@steveslow) or by emailing the Saber Library’s mailbox: saberlibrary at

I can’t promise that I’ll give you an in-depth answer to every question, but at the very least, I’ll do my best to direct you to the right place to find the information you’re seeking. Also, if I get enough questions, I’ll start a “mailbag” feature and answer some commonly asked questions in a weekly post. I’m no expert on sabermetrics – far from it – but we have many knowledgeable writers on staff here at FanGraphs, so if I don’t know the answer to a question, I’ll be sure to find someone else who does.

Also, feel free to contact me with the Saber Library’s email address if you notice any factual mistakes with the Library (like I said, I’m no expert), you have any suggestions for the site, or you have any cool content / links to pass along. There are many writers out there making saber primers, filming introductory videos, and creating educational visuals, and I want the Library to help promote those efforts.

In other words, if you have any questions, suggestions, or cool links, hit me up.

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Steve is the editor-in-chief of DRaysBay and the keeper of the FanGraphs Library. You can follow him on Twitter at @steveslow.

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Using Pitch FX I am very interested in seeing statistics on the % of pitches in the strike zone in each count. For example, what % of pitches in 0-0 count are in the strike zone? 0-1, 1-0, 1-1 etc…Then I would like to break that down further by pitcher type (k/9 +/- 7.0 etc.). Then I would like to know for pitches that are in the strike zone, which area in the 9 cell are they in vs. lefties/righties?

This has so many ramifications!


I’d like to see something on EqA. I still don’t get it.


How come no love for quality starts? I can find every stat imaginable except that one.