The Decline of Raul Ibanez

I was recently given trial access to a great baseball database, which you can see used on a regular basis over at the Baseball Analytics blog. There is a multitude of data available to parse in almost any way, shape, and form. I was like a kid in a candy store. The first thing I wanted to analyze was the decline of Raul Ibanez, so that’s what I did.

Here’s an excerpt:

Having watched Ibanez in his time as a Phillie, I have noticed his problems with fastballs. At 38 years old, it seems like his bat speed has been in decline and thus has been rather helpless trying to make solid contact on fastballs. The following images show his in-play slugging percentage on fastballs, the first showing data from April 5 to June 13, 2009 and the second showing everything since.

Spoiler: the results? Not good.

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4 comments

  1. Rob

    October 20, 2010 11:23 AM

    Good stuff as always. Hopefully we’ll see at least some Francisco tonight.

    Did you look at data prior to 2009? I’m wondering because besides it being a small sample like you mentioned, Ibanez was also particularly hot in early 2009 (slugging .718 and .661 in April and May).

    I’d be curious to see an image of pre-decline Ibanez, but from a period in which he was hitting closer to his career averages.

  2. Richard

    October 20, 2010 12:36 PM

    How does the second half of this year compare to the first half, or the second half of last year?

  3. Sundar

    October 20, 2010 06:36 PM

    And Francisco is starting

  4. AB Testing

    October 21, 2010 11:15 PM

    He was a very solid player for years and went unnoticed in Seattle. He came to Philly and had that final breakout season. He might have 1 last solid season left in the tank.

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