FanGraphs Library Expansion

If you have dropped by the FanGraphs Library recently, you may have noticed that the place has a bit of a new look. Ben Duronio, Bradley Woodrum, and I have recently finished expanding the Library to include more information, so now there are individual subject headings — with multiple articles under each heading — on the following new areas:

Wins Above Replacement

We’ve always had sections for Offensive Stats, Defensive Stats, Pitching Stats, Win Probability Stats, and Sabermetric Principles, but considering the importance of PITCHF/x and WAR, I’ve always been disappointed that we didn’t have fuller sections on each of them. Now we do, and with all the pages we wrote on each, you should be able to answer almost any question you have on either topic.

Want to know how Pitching WAR is calculated or read the explanation behind why we use FIP as the basis of pitcher evaluation? Curious about the concept of “replacement level”? Want to know what a certain PITCH F/x abbreviation represents? Or how to interpret certain charts or data? We have you covered.

We’ve also added a full section going in-depth on some of the more confusing Business aspects of baseball, like how service time, the luxury tax, and revenue sharing each work. It also includes a section detailing all the changes in the most recent CBA agreement.

As always, feel free to contact me on Twitter if you have any questions. Enjoy!

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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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You guys have done an amazing job expanding the library and I really appreciate it. This is the first webpage I turn to during a day and I still have cause to visit the library from time to time. It has gone from being inadequate to fully stocked in a span of a couple of years and I am very appreciative.


I’ll echo this. I often use it as a reference point, and I often refer people with questions about baseball metrics to the FG Library.