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Thursday, March 12, 2009
The Best Catcher of the Retrosheet era
Sky gives us the breakdown. And, I must say, I love the presentation.
Sean uses WOWY for catchers, right?
I don’t see how he could, since I have Piazza at -10 using WOWY.
Hhhmmm.... what other way can you evaluate catcher defense? I think I just assumed it was some version of WOWY, but I guess not. THT has catcher defense, but nothing that translates to runs, and that’s the only measure I can think of besides WOWY.
Sean?
Rally’ll have to confirm, but I’m pretty sure that for the WAR stuff, he uses an approach this approach:
http://www.baseballthinkfactory.org/files/primate_studies/discussion/tweaking_zone_rating/
It assesses things that must matter...but leaves a lot of other things that may matter on the sidelines that WOWY would measure.
-j
^edit out the “an approach” above. I always regret not proofreading before hitting submit.
Also, if you’re interested in seeing more results using that approach, I independently came to virtually the same catcher evaluation procedure here and used that in my WAR stuff I posted all last year:
http://jinaz-reds.blogspot.com/2007/11/player-value-part-3c-fielding-catchers.html
-j
Right, I figured Rally simply compared the WP, PB, SB, CS to the league averages of that year. Likely, Petralli and the other catchers will take an unnecessary hit.
#8 Rally (see all posts) 2009/03/12 (Thu) @ 14:25
Yes, catchers of knuckleballers will take a hit.
I’m comparing the catchers to the league averages of this categories, plus errors and pickoffs, for righhanded and lefthanded pitchers.
It does not consider gamecalling.
#9 Rally (see all posts) 2009/03/12 (Thu) @ 15:06
"Two things surprised me—Piazza wasn’t all that bad behind the plate (typically -5 runs). And Pudge was just disgusting—>=19 runs four times. Hey, sure, methodology and data issues, but jeez.”
Piazza’s average was about -5, his worst years were in the -10 to -15 range. Pudge’s best were over 20, but his average is about +8 or +9 per year. Let’s compare apples to apples.
#10 Brian Cartwright (see all posts) 2009/03/13 (Fri) @ 18:20
Very nice graphic presentation, but where is Gary Carter?
Page 1 of 1 pages
Thanks, Tango.
Two things surprised me—Piazza wasn’t all that bad behind the plate (typically -5 runs). And Pudge was just disgusting—>=19 runs four times. Hey, sure, methodology and data issues, but jeez.