FanGraphs Baseball


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  1. The cutter to LHB depresses BABIP because lefties are *always* getting jammed. Seldom does a lefty make good contact against the pitch. It’s not a mystery.

    Comment by Matt — July 1, 2009 @ 12:07 pm

  2. Mo’s cutter anyway, just wanted to make that clear.

    Comment by Matt — July 1, 2009 @ 12:08 pm

  3. Pretty crazy you wrote this today, last night after the Yankee game me and my friends were delving into the majesty that is Mariano Rivera…

    This freak of nature doesn’t even HAVE “splits” at all. His career numbers are almost identical regardless of home/away, day/night, lefty/righty. The only split that he even shows separation in is save/non-save.

    In other words, I heart Mo.

    Comment by Tom B — July 1, 2009 @ 1:02 pm

  4. Come on… was anyone really aching for a comparison of Rivera and DiFelice’s cutters? Calling this post relevant to anything is a real stretch. There is such a thing as overanalysis.

    Comment by Adam — July 1, 2009 @ 1:02 pm

  5. The chart for Rivera against LHBs is amazing. You can see a gap between the inside and outside of the plate, that is some serious control.

    Comment by Joe S — July 1, 2009 @ 1:10 pm

  6. Really? I love this article, and I was curious as to how two pitchers with such radically different velocities can have such successful one pitch repitoires. Great work here, I think this is a cool idea for an article.

    Comment by Garrett — July 1, 2009 @ 1:27 pm

  7. I agree. This was a fun article.

    Comment by Matt — July 1, 2009 @ 2:38 pm

  8. “Somehow balls in play off his cutter from lefties have a higher pop out rate and much lower BABIP than from righties.”

    I agree, “somehow” is a weird word to use here–it seems entirely intuitive–unless “somehow” signifies the sabermeteric “all BABIP variations are random until proven otherwise”?

    Comment by nick — July 1, 2009 @ 3:09 pm

  9. I think is really cool, personally.

    Comment by Matt Harms — July 1, 2009 @ 6:08 pm

  10. There was a very interesting article here maybe a week or two ago on DiFelice’s cutter, which is starting to gain a lot of attention (namely because it’s the only pitch he throws, it’s slow, doesn’t have a ton of movement, yet DiFelice has had amazing success). So that is part of what prompted this article, I guess. I personally find both of these guys’ cutters fascinating, considering the outrageous success they’ve had with it, so naturally it seemed like a fascinating article to me. But I suppose that some people just like to bitch about free content.

    Comment by Mike I — July 1, 2009 @ 8:41 pm

  11. “Somehow” isn’t really used properly, because we all know why Rivera is so effective against lefties. They have two choices with him: take a called strike or swing and get jammed. They may well make contact, but they will end up getting sawed off and/or popped up.

    Comment by Alireza — July 4, 2009 @ 4:25 am

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