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More defensive numbers

Myron Logan of Baseball Analysts has come up with another fielding metric. This one combines the balls hit into a player's zone, the number of times he turned them into outs, and the plays he made outside of his zone. With this, you come up with a number of plays, plus or minus, compared to an average fielder, and can convert this into a number of runs saved or allowed.

I was going to write about these when, by coincidence, I saw that shoewizard had just posted Fielding Bible stats for our primary and backups at each position. So I thought it would be interesting to see how the two stats compare. They don't cover exactly the same period - the Bible stats appear to be right up-to-date, with maybe half a dozen more games - and the scales are obviously different for the two systems. But it should still give us an idea of whether or not the metrics view the Diamondbacks in the same way.

Position
Primary
Backup
Fielding
Bible
Rating
Baseball
Analysts
Rating
1B
Jackson
Tracy

-6
-2

-10.49
-0.73
2B
Hudson
Ojeda

-4
0

-3.28
+0.15
3B
Reynolds
Ojeda

-7
+3

-9.14
+1.89
SS
Drew
Ojeda

+3
+3

+2.44
+5.12
LF
Byrnes
Jackson

0
+5

+0.09
-1.94
CF
Young

+17

+7.83
RF
Upton
Romero

+5
+2


+1.90
-1.18

Just as shoe did, we also mention utility man Chris Burke, who has played all over the place, without enough innings at any specific location to merit inclusion above. His rating are as follows:

63 Innings @ 1B:  -1 Bible vs. +0.26 Analysts
37 innings @ 2B: +2 vs. +1.46
20 innings @ 3B: -1 vs. -0.90
13 innings @ SS: 0 vs. +0.78
114 innings @ LF: +3 vs. +3.01
44 innings @ RF: 0 vs. +0.10

Here are some points to ponder.

  1. Chris Young is - by quite some distance - the best fielder on the team. Analysts ranks him the sixth best CF in the majors; Bible is even happier, rating him second.
  2. Jackson (at first-base) and Reynolds are vying for the position of most deficient. CoJack is 2nd worst at 1B and Reynolds 6th worst, by the Analysts figures.
  3. Augie Ojeda is at least average with the glove, and usually better, regardless of where he plays. His figures as SS are stunningly goof, given he has less than a hundred innings there.
  4. Orlando Hudson = below average. Breaking down the Analysts stat, he makes significantly fewer plays in his zone than he should, though is above-average out of zone.

It's interesting that the two approaches - entirely stats-based for the Analysts, with more subjective, observer-based elements for the Bible - generally concur on their assessments of the Diamondbacks' abilities. The one where they don't, is Conor Jackson in left-field. The Bible rates him tied for second-best among our fielders; the Anaylysts is much less impressed.

Specifically, Jackson is fine on balls hit into his zone. Of the 52 there, he has made the play on 48, a couple above the expected value of 45.97. However, he should have made 11.23 plays out of his zone, and has only made seven. All told, that leaves him 2.2 plays short of the average, which equates to 1.94 runs allowed. I should point out that this approach does have its limitations. It doesn't take into account Jackson's outfield arm - which may work either way - but I don't think the Bible does either. Odd to see them come to different conclusions on his abilities.

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i wonder

what manny’s stats would be on this?

strange things are afoot at the circle k

by utahdbacksfan on Aug 5, 2008 9:19 PM EDT reply reply actions actions   0 recs

I thought this was an interesting (and valid) point by shoewizard:

“As for Upton, I am a little surprised by his rankings too…..but he was doing a good job of getting to balls that other rightfielders just can’t get to. It’s the curse of his speed. Some other guy would have to lay out full extended and make a highlight reel catch on the same ball Upton can run down and catch standing up.”

Not many people know the real reason Christopher Columbus wanted to find America.

by kishi on Aug 5, 2008 9:28 PM EDT reply reply actions actions   0 recs

From Bill James Online
A player’s more sophisticated fielding profile, as presented in John Dewan’s The Fielding Bible. It includes Plus/Minus, which represents the number of plays the player made, above/below the number that the average fielder would make, according to the video scouts at Baseball Info Solutions. We rate corner infielders for their handling of bunts, and middle infielders for their work on the double play. We rate outfielders for how often they threw out baserunners ("Kills") and how often they allowed them to take the extra base. "Rank" shows the player’s ranking in a particular category among qualifying players at his position (usually around 30). Pitchers and catchers are not included. We show data broken out separately by position, and listed yearly for the past three years.

by shoewizard on Aug 21, 2008 9:10 PM EDT reply reply actions actions   0 recs

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