Sullivan: Year-to-year changes in pitch framing

From Jeff Sullivan at FanGraphs on June 20, 2013:

You know about pitch-framing, and you’ve seen a lot of the numbers. Wow! Take a minute to step back and realize how incredible that is. A few years ago, we wouldn’t have thought this possible. A few years ago, people leaned mostly on catcher reputations. Then there was PITCHf/x and research and genius, and now we have an idea which catchers get the most and least favorable called strike zones. You’re tired of hearing about Jose Molina being great, and you’re tired of hearing about Ryan Doumit being terrible. In a short amount of time, framing details went from unknown to common knowledge. That’s wacky!

A lot of the time these days, when people talk about pitch-framing — or pitch-receiving, to be used interchangeably — they’re looking at specific examples. They’re looking at specific balls or specific strikes, and examining how that particular pitch was caught. Relatively little time is spent talking about changes in framing, on a player or team level. But that can be of interest, just like with any other stat, so I thought I’d take a stab right here. Let’s take a look at some 2012 and 2013 pitch-framing comparisons.

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Originally published: June 20, 2013. Last Updated: June 20, 2013.