Estimated 2012 runs saved due to pitch framingBy
Quite a stir was made last offseason when former Baseball Prospectus-er and current Astros employee Mike Fast published a study quantifying the number of runs catchers saved with his pitch framing skills. That is making a borderline pitch look like a strike to the umpire and getting the call. Russell Martin rated very well in Fast’s study, as in second only to Jose Molina. Here’s a great example of Russ stealing a strike for CC Sabathia in ALDS Game One on Sunday…
At FanGraphs yesterday, Jeff Sullivan used PitchFX data to estimate how many extra strikes each team enjoyed this season, and the Yankees placed fourth in baseball (and first in the AL) at +5 strikes per 1,000 pitches. The league average is actually -5 strikes, not zero. Blame the umps. New York’s pitching staff threw 23,181 total pitches this season, so the pitching staff received approximately 232 more strikes than the league average. That doesn’t sound like much across 162 games, but it is. Past studies have calculated the difference in value between a called ball and a called strike at 0.13 runs, so Martin’s (and Chris Stewart‘s) pitch framing helped save the team a touch more than 30 runs this season. Roughly 9.5 runs equaled a win in 2012′s scoring environment, so those extra strikes were (theoretically) the difference between an AL East title and a wildcard play-in game.
It’s important to note that Sullivan’s estimations ares just that, estimations. Fast’s study was much more precise and comprehensive, and we shouldn’t attribute every single extra strike to the catcher and his pitch framing anyway. Sometimes the umpire was going to the call the pitch a strike without the catcher’s help. Even if that 30 runs saved number is off by as much as 50%, it’s still a lot of runs to save with a simple skill. Catcher defense is a very tough thing to quantify, but analysts have gotten better at it and pitch framing is one of those things that seems to impact the game much more than originally expected.