So, as I mentioned in an earlier post, MLB made my site all screwy by changing some files.

The good news is that I did some coding tonight and got some basic things working again. You should be able to see a few plots.

The bad news is that it is tedious work to fix everything and so it will take a few days before it is all back to normal.

Hi all. With ~10 minutes notice, MLB decided that they were going to completely change the way PitchF/X data is served by deleting a critical directory that my website uses to parse data.

What that means is, my website is completely broken.

It will take a few days to put back online probably, if it can be done.

Before you complain about a particular pitcher getting a particular call, I think it's important to look at the entire strikezone over the course of the game. It turns out, in this case, it's pretty revealing: Normalized Strikezone maps.

Essentially, Mariano Rivera didn't get any pitch called a strike that really hadn't been called a strike before he came into the game.

A friend sent word today that my website was cited in David Kagan's article "The Anatomy of a Pitch: Doing Physics with PITCHf/x Data". This is really neat, because it's always fun to get cited; and it's also really embarrassing, because it means my website now has more citations than some of my academic work. =)

In any event, the article is well written and informative; you can get it here:
The Physics Teacher Online

Of course, if anyone has any questions about using my website to teach physics, please don't hesitate to send me an email at dan@brooksbaseball.net and I will be more than happy to help you download or understand the PITCHf/x data.

Quick update-

Arizona Fall League PitchFX is being tracked in two parks - Surprise (!) and Peoria.

Info comes courtesy of Harry Pavlidis who sent a message after a tweet by Cory Schwartz.

Be forewarned, not all games are likely to be tracked.

I wrote a quick update to my web tool that will capture that data:
http://www.brooksbaseball.net/pfx/indexafl.php

Enjoy!