Velocity Charts

» 12 April 2009 » In npb, pitching »

I’m working on a way to gather pitching information for NPB games. It’s not quite Pitch F/X but it should yield some interesting information. I’m not done yet, but the early results are good. I was able to chart the velocity on each pitch thrown by Hisashi Iwakuma and Hideaki Wakui in their April 10 matchup, which Wakui won 6-0.

(Click to enlarge the charts)


Iwakuma was lifted after six innings and 92 pitches, allowing three runs. 


Wakui used seven different pitches, though he only threw his changeup a couple of times. He threw 138 pitches, and note that his fastball’s velocity drops toward the end.

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  1. Patrick
    13/04/2009 at 2:22 am Permalink

    Interesting. Bit of clustering on Wakui’s pitching. Can you do Darvish next? Sorry, I’m a Fighter’s fan.

  2. Patrick
    13/04/2009 at 8:38 am Permalink

    I’ll have Darvish after his next start. Hopefully by then I’ll be able to post some cooler stuff as well.

  3. Patrick
    13/04/2009 at 2:31 pm Permalink

    Thanks! And keep up the good work. I live in Sapporo, and love baseball. I speak, but can’t read, Japanese. I check your site every morning. Wish there were more English sites. By the way, you planning to post box-scores someday? It’s the thing I miss most- being able to see how the other games went. I watch all the Fighters games on T.V., but would like to see more stats on the other games. Don’t get enough from a 50 word game summary, and the T.V. news coverage is Fighters and Giants only in Sapporo. As if you aren’t busy enough already…..

  4. Patrick
    13/04/2009 at 2:40 pm Permalink

    Shaggy, go to this website for Box Scores:

    It’s the English language version of the NPB’s official site.

  5. Patrick
    13/04/2009 at 4:00 pm Permalink

    Cool! Thanks a lot Marc!

  6. Patrick
    13/04/2009 at 8:50 pm Permalink

    Interesting stuff. Great job in gathering the info!


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