Baseball for the Thinking Fan

Login | Register | Feedback

btf_logo

News

All News | Prime News

Old-School Newsstand


Contributors

Jim Furtado
Founder & Publisher
Repoz
Editor - Baseball Primer

Syndicate

Advanced Metrics Newsbeat

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.’ ”


 

 

News

All News | Prime News

Old-School Newsstand


BBTF Partner

Dynasty League Baseball

Support BBTF

donate

Thanks to
1k5v3L
for his generous support.

Bookmarks

You must be logged in to view your Bookmarks.

Hot Topics

NewsblogThe Sky Is Falling, Baseball Is Dying, and the Roof May Leak
(1 - 8:36am, Nov 20)
Last: John DiFool2

NewsblogMariners trade left-hander James Paxton to the Yankees for three prospects
(29 - 8:21am, Nov 20)
Last: You Know Nothing JT Snow (YR)

Newsblog2019 BBWAA HALL OF FAME BALLOT
(2 - 8:10am, Nov 20)
Last: ERROR---Jolly Old St. Nick

NewsblogSale of Baseball Prospectus
(442 - 7:59am, Nov 20)
Last: ERROR---Jolly Old St. Nick

NewsblogIchiro gave a surprise gift at Hitoki Iwase's retirement party ... then immediately left
(3 - 6:54am, Nov 20)
Last: vortex of dissipation

NewsblogHeyman’s Latest: Mets, Machado, Red Sox, Dodgers, Marlins
(5 - 4:28am, Nov 20)
Last: Belfry Bob

NewsblogCubs in need of major overhaul? Don't be silly
(23 - 3:56am, Nov 20)
Last: What did Billy Ripken have against ElRoy Face?

NewsblogOT - 2018 NFL thread
(87 - 1:46am, Nov 20)
Last: Howie Menckel

NewsblogOT - NBA Thread (2018-19 season kickoff edition)
(2620 - 1:11am, Nov 20)
Last: tshipman

NewsblogMLB Trade Rumors: Phillies 'Expecting to Spend Money' in Pursuit of Bryce Harper, Manny Machado
(23 - 12:43am, Nov 20)
Last: Michael Paulionis

NewsblogTaking Back the Ballparks - White Sox voting thread
(12 - 12:33am, Nov 20)
Last: SoSH U at work

NewsblogAvid Barry Bonds Collector Has Amassed 5,000 Examples Of The Same Card
(15 - 12:27am, Nov 20)
Last: asinwreck

NewsblogQ&A: Damon Minor on Giants' Steven Duggar, Chris Shaw, Aramis Garcia
(4 - 12:17am, Nov 20)
Last: Michael Paulionis

Newsblog2018 Cy Young Award winners | MLB.com
(60 - 12:06am, Nov 20)
Last: QLE

NewsblogHow to Improve MLB The Show
(1 - 11:24pm, Nov 19)
Last: Rowland Office Supplies

Page rendered in 0.8610 seconds
44 querie(s) executed