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  1. Great work again Bill!

    I’d be interested to see this broken down by outs in the half inning, as I found on my ProGUESTus article today looking at strike zone factors that the zone expands with two outs, in particular at the edges (as opposed to up/down).

    Comment by Jon Roegele — July 24, 2013 @ 11:05 am

  2. But where are the .gifs!

    Comment by mch38 — July 24, 2013 @ 11:22 am

  3. Awesome!

    Comment by Ivan Grushenko — July 24, 2013 @ 11:28 am

  4. Just from a comment Keith Law made last night, do we have edge and zone inflation metrics on “elite” pitchers in name vs. the normal mortal pitchers?

    I thought there was some small analysis on guys like Glavine and Maddux pre-questec vs. after but in this new age, “stars” get the benefit of borderline calls vs. joe schmoes no?

    Comment by chri521 — July 24, 2013 @ 11:45 am

  5. And people say I’m an attention whore…..

    Comment by Bono — July 24, 2013 @ 12:08 pm

  6. I was actually going to run that, but figured I already had enough and wanted to get it written up. But I’ll definitely take a look at outs next time. Also want to look at runners on/scoring position.

    Comment by Bill Petti — July 24, 2013 @ 1:03 pm

  7. Simply fascinating! It might be interesting in the various cohorts to see what pitch dynamics had to do with edge calls. In the simplest case, fastball velocity as a dynamic variable. I, for one, have always been curious whether there was something special about the velocity/break dynamics of the cut fastball as to edge calls. There seems to be something of a 90-91 MPH sweet spot for guys like Vogelsong for instance to get the call.

    Comment by channelclemente — July 24, 2013 @ 1:28 pm

  8. Obviously, which pitch to throw on which count depends on execution. Do you want to throw a CB on a 3-0 count if you can’t hit the Edge.You should look at the interaction between % of pitches that locate on the Edge and % of those that get called strikes.

    Comment by newsense — July 24, 2013 @ 4:05 pm

  9. I’d be interested to know whether pitcher reputation has anything to do with getting called strikes on the edge. I know it would be hard to quantify, but I can’t help but think that a respected veteran like Mariano Rivera is getting more help from the umpires than a guy who just got called up from AAA. I also wonder whether the umpire would give the pitcher more strikes if he is in the middle of a good or a bad performance.

    Comment by Jacob — July 24, 2013 @ 4:30 pm

  10. and in the same vein…

    rookie (or “non-established”) batters vs “seasoned” pitchers

    and, vice versa.


    dare we (?)…

    minority batters vs non-minority pitchers ?
    and vice versa…

    combine that with the “rookie” vs “experienced” players…

    and then with minority (or non-minority) umps…

    oh yeah.

    THOSE would be some interesting splits.

    Every step towards robo umps (for balls/strikes anyway), is a good step. Nothing more powerful than an idea whose time has come.

    Thanks much for the data.

    Comment by Dave S (the original) — July 25, 2013 @ 12:39 am

  11. This sounds similar to a Hardball Times article

    The Compassionate Umpire
    by John Walsh
    April 07, 2010

    Comment by Cyril Morong — July 26, 2013 @ 6:13 pm

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