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Jim Furtado
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Repoz
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Monday, August 13, 2018

Fangraphs: Jackie Bradley, Jr. and the Error Rule

To summarize:

1. The MLB rules state that the part of the error rule about ordinary effort is an objective standard.

2. The part of the error rule that says it’s all dependent on the judgment of the official scorer establishes a subjective standard.

3. Statcast is more 1. than 2.

IMO the standard of “ordinary effort” applies to any part of the fielding process, not the sum total. If a fielder gets an extraordinary jump, runs with extraordinary speed on an unusually efficient route, and then botches the catch, it doesn’t matter that ordinary effort wouldn’t have put him in position to make the catch. A fielder in position to make the catch will, in ordinary effort, make the catch. Failing to catch it, after getting into position, is an error. Failing to get into position to make the catch - through ordinary effort - is not an error.


Giancarlo Stanton’s Baseball Savant Page

The Statcast team keeps adding more and more useful content to the Baseball Savant site. If you haven’t checked it out in a while, check it out.

Jim Furtado Posted: August 13, 2018 at 08:33 AM | 4 comment(s)
  Beats: statcast, statistics

Thursday, August 02, 2018

MLB Team Fielder Positioning | baseballsavant.com

Somebody needs to share this with Billy Ripken.

Jim Furtado Posted: August 02, 2018 at 08:20 AM | 0 comment(s)
  Beats: statcast

Thursday, July 26, 2018

J.D. Martinez’s Defense? What The Numbers Really Say

The graphics are goofy; the videos are useful; the conversation is fantastic. A moderate-depth piece from Alex Speier on why some advanced defensive metrics aren’t advanced enough.

“Statcast data has changed the way that internally teams are doing defensive evaluations,” Stern told Martinez. “But to the best of my knowledge, I don’t think very much of that is public, so it hasn’t really changed any of the public-facing numbers that people have access to.”

Martinez had heard similar feedback last year after he was traded from the Tigers to the Diamondbacks. With Detroit, Martinez had graded as well below-average. After his trade, UZR and DRS offered favorable numbers for his work. Martinez recalled a conversation with Arizona head of analytics Mike Fitzgerald in which he discussed the disparity.

“My [UZR] has always been a negative in the outfield,” recounted Martinez. “Then I go to Arizona and my [UZR] is positive. I go, ‘What’s the difference?’ He said, ‘Now we’ve got you positioned right.’ ”


Wednesday, May 02, 2018

The AZ Snake Pit Statcast Primer

If you don’t know how to use MLB’s Statcast tool, then start here!

Time some of you fossils learned something new   ;)  OK….I’m a fossil too.

shoewizard Posted: May 02, 2018 at 05:48 PM | 2 comment(s)
  Beats: analytics, statcast

 

 

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