Must-click link: catchers framing pitches have a huge impact on ball/strike calls

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This is something that we’ve always suspected intuitively, but Mike Fast has a major piece up over at Baseball Prospectus today exploring (a) how much of an influence a catcher has on ball/strike calls for borderline pitches; (b) the techniques they use to do this; and (c) who, among active catchers is the best at it.  The upshot: the effect is way greater than you’d think for such a seemingly minor thing.

There’s pitch plot evidence to show who gets the calls and where and animated gifs showing the differences between the good catchers and the bad catchers in terms of how glove movement and head movement can impact whether a pitch is a ball or a stike. There is also, it should be noted, an unquantifiable piece to all of this which may depend on a catcher’s reputation, relationships with the umpires and that sort of thing.  But there are clear trends in the data.  And Jose Molina as a friggin’ boss.

Keith Law just read it and tweeted the same first observation I had: “The biggest impact of that … piece should be on umpires. It’s hard proof they are bad at calling borderline balls/strikes.”  Yes, the human element, for lack of a better term, is going to be present when men call balls and strikes. But the borderline calls are bad and no catcher should have this much of an ability to impact the calls. Robots anyone?  Or, short of that, maybe your team’s GM should give Jose Molina’s agent a call.

This is a major study that people who care about such things should bookmark.

Watch: Christian Yelich continues to make a case for NL MVP repeat

Christian Yelich
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Christian Yelich simply can’t be stopped. The Brewers outfielder (and defending NL MVP) entered Saturday’s game with a league-leading 11 home runs after swatting two against the Dodgers on Friday night, then clubbed another two homers in the first six innings of Saturday’s game.

The first came on a 2-1 pitch from the Dodgers’ Hyun-Jin Ryu, who lobbed a changeup toward the bottom of the strike zone before it was lifted up and out to center field for a solo home run in the third inning.

While Chase Anderson and Alex Claudio held down the fort against the Dodgers’ lineup, Yelich prepared for his second blast in the sixth inning — this one a 421-foot double-decker on a first-pitch curveball from Ryu.

Yelich’s 13 home runs not only gave him a stronger grip on the league’s leaderboard, but helped him tie yet another franchise record, too. Per MLB.com’s Adam McCalvy, he’s tied with Prince Fielder for the most home runs hit by a Brewers player in a single month, and sits just one home run shy of tying Álex Rodríguez’s 2007 record for most home runs hit within any club’s first 22 games of the season.

It may be far too early to predict which players will finish first in the MVP races this fall, but there’s no denying Yelich has already set himself apart from the competition. Through Saturday’s performance, he’s batting .361/.459/.880 with a 1.329 OPS and MLB-best 31 RBI across 98 PA so far.