Umpire statistics

We (Harry and I) have released PITCHf/x based statistics for every umpire that has called a PITCHf/x enabled game, provided that they called enough pitches to accurately represent their called strikezone. We sincerely appreciate you taking the time to read this post before using our umpiring data. Being an umpire is hard. It might be […]

Things are trending up

About a year ago, sometime during John Lackey’s precipitous decline into worthlessness, I started paying attention to an odd phenomenon in which he would lose velocity during games: Here, we can see a clear slope in fastballs thrown over the course of the game. It’s as if there’s some direct, measurable relationship between how many […]

Similarity Scores: a very beta feature

Last night during the heart-stopping Syracuse-Wisconsin game, Harry and I were talking (okay, Harry was mostly watching his team win by the skin of its teeth) about ways to improve the Brooks Baseball player card system. We exchanged some data and are presenting the first of our “data-driven” search tools—pitcher similarity. This feature is incredibly […]

Z-Scores and Pitch IQ Scores

I thought it important to describe a new feature we’ve added to the PitchFX Player Cards over the last month or so. I’ve previously tweeted (@Brooksbaseball) about these features but haven’t described them in detail. When the cards first debuted, we were asked by a number of people to provide average data for comparison, especially […]

Yes, we actually classified every pitch

Long term PITCHf/x data has always been difficult to find online. There are several existing sources available: Fangraphs has some of it, but not everything you might want (I’m sure they will tomorrow, just for that). Texas Leaguer has had a fantastic tool up for quite some time now, but still, there are places it […]