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

Defense Newsbeat

Friday, January 23, 2015

Why Jung-Ho Kang Doesn’t Need to be a Brilliant Fielder | FanGraphs Baseball

A really good look at what the Pirates are doing on defense.

Jim Furtado Posted: January 23, 2015 at 06:51 AM | 3 comment(s)
  Beats: defense, jung-ho kang, pirates, sabermetrics, shifts

Wednesday, December 24, 2014

The Twins May Have Weakened a Weakness | FanGraphs Baseball

Do the Twins really need defense?

Jim Furtado Posted: December 24, 2014 at 11:18 AM | 14 comment(s)
  Beats: defense, sabermetrics, twins

Monday, November 03, 2014

Breaking down “Fielding Bible” ballot - SweetSpot Blog - ESPN

In the last Fielding Bible they listed a few different categories. I have not been able to find the full listing. If you can share it, please contact me. 

Good Fielding Play/Misplay & Error ratio: For brevity, I’m going to refer to this as Good Play/Bad Play Ratio. Baseball Info Solutions has staffers watch every game and among their duties is to rate defensive plays as Good Plays or Misplays & Errors, based on a series of rules devised by Bill James and other statisticians.

There are approximately 30 categories of Good Fielding Plays and 60 categories of Misplays and Errors. Think of it as an advanced scorekeeping system that keeps fielders (and official scorers) honest.

Jim Furtado Posted: November 03, 2014 at 09:52 AM | 0 comment(s)
  Beats: awards, bis, defense

Thursday, October 16, 2014

The Survivor’s Guide to Beating Kansas City’s Ultimate Outfield

Royals outfielders collectively led the league in both DRS and UZR this season, and Gordon, Cain, and Dyson ranked third, fourth, and ninth, respectively, among individual outfielders in DRS. The Royals outfielders’ arms account for some of the strength of their defensive ratings, but they nearly doubled the closest club in UZR Range Runs, which measures only how good they were at getting to balls. “We’re not just talking about a good outfield, or a great outfield,” wrote Baseball Prospectus’s Sam Miller on Monday, noting that the three outfielders’ 2014 DRS totals at the positions they play would prorate to a combined plus-80 over 135 games. “We’re talking about what one might decide to argue is the greatest defensive outfield of all-time.” It’s certainly looked like it lately, as all four Royals outfielders have taken turns topping each other with increasingly spectacular grabs.

Zach Posted: October 16, 2014 at 06:07 PM | 0 comment(s)
  Beats: death to flying things, defense, royals

Wednesday, October 15, 2014

Fangraphs (Sullivan): Defense Needed The Royals

It’s Jeff Sullivan, with GIFs, talking about defense on Fangraphs. Read it.

The Royals feel like an exaggeration of what defense can do. In this way I can only speak for myself, but when, say, Miguel Cabrera goes on one of his tears, I see him at the plate and I feel like he could hit a dinger at a moment’s notice. I can sense the threat of a slugger, because I’m aware of the range of possible outcomes. The Royals have made me sense a defense. The feeling I get is that every ball in play is doomed. Hit a ball to the outfield and you might as well just walk back to the dugout, unless you hit it 420 feet. Not every ball in play is converted, naturally, but not every slugger plate appearance turns into a handful of bases. It just happens often enough to set the expectation. The expectation is that the Royals will make the out, if it’s in any way possible. [...]

I get how weird it might be to see something of a pro-Royals article on FanGraphs, given, you know. But for one thing, this isn’t specifically about the Royals. And for another, there’s no better current representation of something we all hold to be important. The Royals are like if UZR were a general manager, and while there have been great defensive teams before, the Royals are sensational and the Royals are one win away from the World Series with limited other strengths. Is defense really as important as WAR suggests? I mean, I don’t know with 100% certainty, but the Royals make a hell of an argument. Outs are in — and so are the Royals.

Esoteric Posted: October 15, 2014 at 09:20 PM | 0 comment(s)
  Beats: defense, kansas city, kansas city royals, playoffs, royals

Wednesday, October 08, 2014


Sunday, October 05, 2014

Who are the 2014 Fielding Bible Award / Gold Glove Contenders? (Part I) | Articles | Bill James Online

Here’s some early insight into the Gold Glove race.

Jim Furtado Posted: October 05, 2014 at 07:22 AM | 1 comment(s)
  Beats: awards, defense, gold gloves, sabermetrics

Friday, August 29, 2014

FG (Zimmerman): Alex Gordon, UZR, and Bad Left Field Defense

Duh, but also, thanks, Jeff.

Outfield defense has three components, Range (ability to field balls), Arm and Errors. [Alex] Gordon has a great arm and his LF values since 2011 have ranged from 8 Runs to 11 Runs, so no change there. His Error component has gone from 0 to 2 Runs. Again, not the reason for the jump. The key difference is in his Range value at 14 Runs because his previous high was just 4 Runs…

Here are the league average values for in and out-of-zone values compared to Gordon’s values and the difference.

In Zone
Year: League%, Gordon%, Difference
2010: 87.1%, 91.7%, 4.6%
2011: 90.4%, 92.3%, 1.9%
2012: 89.7%, 91.3%, 1.6%
2013: 90.6%, 91.8%, 1.2%
2014: 88.4%, 91.6%, 3.2%

Out-of-Zone
Year: League Rate, Gordon Rate, Difference
2010: 0.049, 0.043, -0.006
2011: 0.065, 0.057, -0.008
2012: 0.058, 0.062, 0.004
2013: 0.066, 0.081, 0.015
2014: 0.057, 0.082, 0.025

With individual position UZR values, the baseline values can move around quite a bit. There are only 30 inputs into the baseline values, so if just a few players move to a new position or get hurt, the zero value can change… Three of the top eight [fielders by LF range in 2013] haven’t played in the majors this season…

As I’ve noted before, this is one possible area of consideration for the UZR. A potential improvement to the system for the future, and one considered in that linked piece, is a baseline defensive value which is constant from year to year in addition to just UZR… The first 500 words of this article wouldn’t be necessary if [this] metric were available. It could show Gordon’s Range Value is at a +4 Historic Runs (hypothetically speaking) compared to +14 2014 Runs. Maybe each player doesn’t need two values, maybe just a comparison value for the entire season could be available.

Putting it all together, the jump in Alex Gordon‘s total WAR to a league leading value really has nothing to do with Alex Gordon. He is the same defensive player he has been over the past few season. What has happened is the league wide level in talent has fallen off in left field thereby boosting Gordon’s numbers substantially.

The District Attorney Posted: August 29, 2014 at 01:37 PM | 47 comment(s)
  Beats: alex gordon, defense, royals, sabermetrics

Monday, August 11, 2014

SABR Defensive Index rankings released through August 3, 2014

Atlanta’s Jason Heyward tops the NL’s SABR Defensive Index™ rankings through games of August 3, 2014, while Alex Gordon leads a trio of Kansas City outfielders who all rank in the top 10 of the AL SDI rankings.

The SABR Defensive Index is used to help select the winners of the Rawlings Gold Glove Award® and Rawlings Platinum Glove Award™, presented by SABR.

cardsfanboy Posted: August 11, 2014 at 04:14 PM | 20 comment(s)
  Beats: defense, gold glove

Tuesday, August 05, 2014

Collins: Lagares’ defense ranks with the best

Even the Mets, who watch Juan Lagares play every day, are sometimes amazed by the outfielder’s capabilities.

Lagares put on another defensive show in Monday’s loss to the Giants, throwing a runner out at home plate in the seventh inning to stop the bleeding during a potentially huge rally.

With one run already home and two men on base, Pablo Sandoval hit a sharp single to center field. Lagares charged, took a quick extra step and fired home, putting his entire body’s momentum behind the throw. It sailed about a foot to the third-base side of home plate, allowing catcher Travis d’Arnaud to catch it on the fly and apply the tag.

“There are a lot of good outfielders in this league, but Juan Lagares ranks right with anybody in this league defensively,” manager Terry Collins said. “He’s got a great arm.”

Russlan is fond of Dillon Gee Posted: August 05, 2014 at 04:15 AM | 15 comment(s)
  Beats: defense, juan lagares, mets

 

 

BBTF Partner

Support BBTF

donate

Thanks to
Jolly Old St. Nick Is A Jolly Old St. Crip
for his generous support.

Bookmarks

You must be logged in to view your Bookmarks.

Hot Topics

NewsblogPitchfork: Jack White Gets His Own Baseball Card
(160 - 6:12pm, Jan 27)
Last: Manny Coon

NewsblogOT - Politics January 2015 - Mario Cuomo, New York Governor and Minor League Ballplayer, Dies at 82
(3749 - 6:09pm, Jan 27)
Last: Greg K

NewsblogOT: NFL/NHL thread
(11671 - 6:09pm, Jan 27)
Last: The Anthony Kennedy of BBTF (Scott)

NewsblogOT: Soccer January 2015
(322 - 6:07pm, Jan 27)
Last: JuanGone..except1game

NewsblogOT: The NHL is finally back thread, part 2
(1009 - 6:06pm, Jan 27)
Last: starving to death with a full STEAGLES

NewsblogBring Back Selig - New Commissioner Manfred is a Moron - Halos Heaven
(349 - 6:06pm, Jan 27)
Last: The Id of SugarBear Blanks

NewsblogOT: Monthly NBA Thread - January 2015
(1490 - 5:58pm, Jan 27)
Last: starving to death with a full STEAGLES

NewsblogRanking baseball's greatest dynasties - SweetSpot Blog - ESPN
(35 - 5:35pm, Jan 27)
Last: Mark Armour

NewsblogCleveland Indians want Michael Bourn to "wreak havoc" on bases in 2015 | cleveland.com
(23 - 5:31pm, Jan 27)
Last: Der-K is at full whelm.

NewsblogOT: Wrestling Thread November 2014
(442 - 5:28pm, Jan 27)
Last: Chokeland Bill

NewsblogBeyond the Box Score's rankings of the best players for 2015: 45-11 - Beyond the Box Score
(12 - 4:37pm, Jan 27)
Last: Walt Davis

NewsblogReds Extend Devin Mesoraco – MLB Trade Rumors
(2 - 4:32pm, Jan 27)
Last: zonk

NewsblogPrimer Dugout (and link of the day) 1-27-2015
(15 - 4:22pm, Jan 27)
Last: vortex of dissipation

Hall of MeritErnie Lombardi
(53 - 4:18pm, Jan 27)
Last: The District Attorney

NewsblogYanks to contest 'milestone HR'
(43 - 4:17pm, Jan 27)
Last: Walt Davis

Page rendered in 1.1658 seconds
92 querie(s) executed