UZR is a defensive metric created by Mitchel Lichtman, former head statmaster for the St. Louis Cardinals. Both UZR and wRAA are in fact measured above average, but we need to convert that to replacement level, so the +20 runs per 600 PA come into play. Then the positional adjustment per 162 games comes into play (-12.5 1B, +2.5 2B/3B/CF, +12.5 C, -7.5 LF/RF, +7.5 SS).

]]>Applying my own defense measure for Utley against repalcement, I get a composite +178 runs for Utley or +5.93 runs/year. I stand corrected on the obvious bit though: +5.93 or +7 WINS IS insanely good @ a position/year. [I let yself get thrown by the “replcement” reference.

]]>1) Convert wOBA to wRAA, which is the batting component

2) Add to the UZR defense component

3) Add in a positional adjustment per 162 games, prorated if below 162 games

4) Add in adjustment above replacement, which is +20 runs per 600 PA.

The wRAA and UZR compare to the league average, but the replacement adjustment takes care of that.

And +22.7 wins over 3 yrs is INSANELY impressive. That’s over +7 wins/yr. To say it isn’t an accomplishment is to not understand what good win values are, in all honesty.

]]>I saw nothing in the article that defined performance against replacement. In fact, the +/- numbers eeven amon the “elite” 2B named were so small on a seasonal average basis as to belie that.

Also the offense +/- defense construction above replacement and amounting to only 22.7 wins, net, above replacement, seem to be not that much of an accomplishment.

]]>Comparing my own defense + RC metrics for 2B mentioned in your article, and using 85RC per each lineup “slot” [85*9=765/162=4.72 runs/game], I get the following for each from 2006 through 2008 in aggregate runs:

2B…………Offense RC………Defense Runs……..Net Runs….”Slot’ AVG

Phillips………266…………………-12.25…………..253.75……..255

Hudson……..245.9……………….+24.6…………..270.60………255

Sanchez…….257.9……………….+ 6.8…………..267.70………255

Hill…………..200.5……………….+18.4…………..219.30………255

Utley………..378.0………………..- 4.8…………..373.20……….255

Uggla……….296.4……………….-12.25………….284.15……….255

The last column presumes a hitter at 2B who offensively creates 85 runs and is defense neutral @ +/- 0. With a high hitting climate, I’m presuming 4.1 PA @ 162 games = 664 plate appearances. 85 RC = .1280 RC/PA.

If I’m near right, the players above would rate as follows:

Player………………Net + Runs………Runs as Wins

Utley…………………118.2………………..11.82

Uggla……………….. 29.2………………….2.92

Hudson…………….. 15.6………………….1.56

Sanchez…………….. 12.7………………….1.27

Phillips……………..- 1.75………………..-0.18

Hill………………….- 36.1…………………-3.61

Runs are 3 year aggregates, so Utley would be worth (11.82/3) = +3.94 Wins per each of the last three seasons.

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