FanGraphs Baseball


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  1. funny how all you hear is how bad the yankees defense is compared to the sox… yet…

    Comment by Tom B — May 11, 2009 @ 9:42 am

  2. i think it should be fair to note Ryan Howard and his 11.3 UZR/150 so far this year. dude has been a wizard at first base this year.

    Comment by Jamie — May 11, 2009 @ 10:02 am

  3. How much of Bay’s total is the Green Monster?

    It’s no surprise that Lugo’s been that bad in limited playing time — his fielding has looked clearly awful.

    Comment by plink — May 11, 2009 @ 10:03 am

  4. How worthwhile is UZR this early in the season? I only ask because Raul Ibanez is sitting at 23.7 UZR/150 and that number doesn’t have a negative sign in front of it.

    Comment by Phylan — May 11, 2009 @ 10:56 am

  5. One season of offensive data is equal to three seasons of defensive data.

    So relatively speaking, UZR is worth relatively nothing at this point.

    Comment by R.J. Anderson — May 11, 2009 @ 10:58 am

  6. Furcal looked pretty awful at SS this weekend.

    Comment by oldjacket — May 11, 2009 @ 11:05 am

  7. While UZR at this point has little predictive value, doesn’t it tell us to this point in the season, who has performed well? For example, while past UZR suggest that Raul is unlikely to continue at his current level, he seems to have performed admirably well to this point of the season?

    Stats serve two purposes:
    1) A predictor of future outcomes
    2) an evaluation of of past performance

    At this point in the season UZR is a good tool for 2, but not particularly useful for 1, correct?

    Comment by Everett — May 11, 2009 @ 11:08 am

  8. This is a much better way of stating things, yes, although the way the question was phrased I assumed he meant 1.

    Comment by R.J. Anderson — May 11, 2009 @ 11:11 am

  9. A defensive sample this small is so noisy that I’d argue it’s tough to believe.

    Without knowing knowing anything about the spread in the data, it’s tough to interpret these data IMHO.

    Comment by Terry — May 11, 2009 @ 11:12 am

  10. Rickie Weeks has the highest UZR/150 by a 2B on the season. I can’t imagine that will hold true all season but he has noticeably improved.this season defensively. Will be interesting to see what happens with him as a few years ago he was the worst 2B in baseball and has slowly improved to the point of being roughly average the past 2 seasons. (though to be fair the eyeball test still left him below average).

    Comment by Ender — May 11, 2009 @ 11:24 am

  11. Offensive data and defensive “metrics” are not comparable. Its is a fabrication. Seven out of 10 dentists recommend Crest. So what?

    Comment by Hal — May 11, 2009 @ 5:27 pm

  12. UZR seems to be severely underrating both Hudson and Ethier. Hudson has been making some absolutely insane plays and getting to balls no one has business getting to, and seems to be penalized for that because he isn’t making an out. The issue is, those would be balls into CF or RF, and more damaging if Hudson doesn’t stop them.

    As for Ethier, his arm is a well know commodity and has been severely underrated this year, which is eating up his UZR. That should certainly change as the season goes on.

    Comment by Alireza — May 11, 2009 @ 7:05 pm

  13. I knew that Jay Bruce was playing great defense this year. Gold Glove, in fact. There’s a stat to back it up.

    Comment by TheNaturalMevs — May 12, 2009 @ 3:57 pm

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