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A UZR-less 2012

If you visit FanGraphs or Baseball-Reference during the baseball season, it's tough to avoid exposure to defensive statistics like UZR, DRS or TZ. They feature prominently on individual player pages and leaderboards. Their existence is mostly beneficial, especially in the long term. A look at the all-time TZ leaderboards at various positions jibes with historical reputations. These stats don't appear to be total bunk and information is a good thing. However, I fear -- and maybe I'm wrong -- that following the ups and downs of UZR, etc. during the season serves to bias perception of players' defensive performance. So this year I will do my best to avoid looking at defensive stats until the season ends, trusting my eyes first to judge defense.

Star-divide

I touched on this idea in the 2011 Center Field Postmortem. I felt that my assessments of player defense in previous seasons had been tainted by accessing defensive stats. While completing the Tom Tango Fans' Scouting Report, I knew that unsuccessfully suppressed knowledge of each Met player's UZR/DRS/TZ was affecting my desired eyes-only evaluation, like watching a movie after checking out its rating on Rotten Tomatoes. Well no more, I say. My goal is to complete the Fans' Scouting Report as its proprietor instructs:

And, most importantly, do not, absolutely do not, look at any numbers. Don't look at his fielding percentage, range factor, zone rating, UZR, or anything else that someone else is telling you. I just want you to rely on your eyes. You are the scout. I need you to rely completely on your own observations.

I have two ideas to help sidestep defensive stats on the prominent stat sites. The first entails creating a custom dashboard on FanGraphs so UZR and fWAR do not show up on player pages. Here is a before and after look at the dashboard (click to embiggen):

BEFORE (default)

Ikedavisbefore_medium

AFTER (custom)

Ikedavisafter_medium

UZR and fWAR are omitted, but will (presumably) still be accessible after the regular season. I doubt I will miss checking Daniel Murphy's UZR in mid-May. Let's wait for a larger sample size. Click here to create a custom dashboard.

The second idea is to look at the oWAR stat on Baseball-Reference, which is the same as rWAR but with defensive value excluded. Click here for the year-by-year oWAR leaders. This should satiate the WAR junkies and anyone who enjoys a good All Star Game selection discussion. It provides a rough idea of value using stats more reliable than UZR, DRS or TZ. Adjust for defense at your own discretion.

This plan might not be feasible -- the outcome of the game you DVR'd for later always seems to find its way to your ears -- but it's worth a shot. Just eyes in 2012.

Comment 9 comments  |  3 recs  | 

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Even after a full single season, we can’t draw any meaningful conclusions looking at those. UZR (and WAR) after 3 full seasons are fine, before that, are degrees of grains of salt.

In lobby for: Jaime Cevallos, Zack Lutz, orange unis and Rickroll as the 7th inning song.
The Unwritten Rules of AA

by Michkin on Jan 19, 2012 12:57 PM EST reply actions  

I like this

Anything that reduces the amount of times I have to argue with people holding up single season/sss defensive metrics is a good thing. (Not saying that you do this James, just hoping that it starts a trend)

"I reject your reality and substitute my own"
-Adam Savage

by blueandorange4life on Jan 19, 2012 1:07 PM EST reply actions  

What ever happened to hit/field f/x?

I remember that was supposed to be the next big thing and would have ushered in a new era of awesome defense statistics.

by TheBigStapler on Jan 19, 2012 2:04 PM EST reply actions  

It won't be publicly available.

In lobby for: Jaime Cevallos, Zack Lutz, orange unis and Rickroll as the 7th inning song.
The Unwritten Rules of AA

by Michkin on Jan 19, 2012 2:16 PM EST up reply actions  

I agree with what you say James. When doing those fan scouting reports, I generally already know the players' UZR and that inluences my evaluation.

Also, since a full season of UZR isn’t reliable, how can a few weeks of it be?

Good luck avoiding UZR this season, but I must recommend that in addition to not looking at fielding on FanGraphs, you probably shouldn’t read this site either. I’m sure the UZRs will be posted quite often.

by Evan_S on Jan 19, 2012 3:51 PM EST reply actions  

If I see "UZR" in a post or comment

I’ll slam my computer shut. Or just X out of the browser.

by James Kannengieser on Jan 19, 2012 6:21 PM EST up reply actions  

I was actually going to comment on that

since it is a meaningless stat, one could ban the use of it. Not you or I, but James or Eric could, and the community could enforce the non-citing of it. The reasons it is pointless to cite have been repeated a hundred times per season on this site the past few years and I am tired of it.

2012 New York Mets, World Series Champions!

by astromets on Jan 20, 2012 12:02 AM EST up reply actions  

About time.

Good move, JamKan. I’d argue that no stat—old or new— is more useless over the short term than UZR. Kick it to the curb with Carrasco

by RetireNumber8 on Jan 21, 2012 5:36 PM EST reply actions  

Speaking of UZR

Is there any way to see UZR “splits” over the course of prior seasons? Like first half/second half or broken down by months?

I know splits might be meaningless since even the worth of one full season of UZR is questionable, but I was curious to see how it may fluctuate for certain players over the course of the yr.

by LGNYM on Jan 21, 2012 8:03 PM EST reply actions  

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