Tuesday, December 25, 2012

Austin Jackson Among Top Center Fielders Defensively in 2012

In previous posts, I took the Revised Zone Rating (RZR) and Out-of-Zone Plays (OOZ) metrics listed at FanGraphs and converted them to runs based on an algorithm developed by Colin Wyers a few years ago.  Links to these posts are provided below:
Now, I'm going to to do the run conversion for center fielders.  Table 1 below contains the following information for 22 MLB center fielders with 800 or more innings in 2012:
  • Inn = Innings
  • RZR = Revised Zone Rating
  • OOZ = Out-of-Zone Plays
  • PIZAA =  Plays in Zone Above Average
  • OOZAA = Out-of-Zone Plays Above Average
  • PMAA = Total Plays Above Average
  • RSAA = Runs Saved Above Average
Minnesota Twins center fielder Denard Span led the majors with +24 Runs Saved Above Average.  Next was Braves outfielder Michael Bourn at +18.  Both Span (+22 plays) and Bourn (+24) were especially good outside the zone. The worst center fielder by this metric was B.J. Upton of the Rays (-29 RSAA)

Tigers center fielder Austin Jackson tied for third with Angel Pagan of the Giants with +17 RSAA.  Jackson was only +4 plays over average in the center field zone, but was +17 outside the zone.  He also rated well well on Defensive Runs Saved (+5) and Baseball Prospectus' Fielding Runs Above Average (+9).

Table 1: Runs Saved by MLB Center Fielders According to RZR, OOZ, 2012

Player
Team
Inn
RZR
OOZ
PIZ AA
OOZ AA
PMAA
RSAA
Denard Span
MIN
1,073
.950
93
7
22
29
24
Michael Bourn
ATL
1,340
.913
113
-3
24
21
18
Austin Jackson
DET
1,184
.939
95
4
17
21
17
Angel Pagan
SFG
1,279
.939
100
4
15
20
17
Alejandro De Aza
CHW
1,078
.927
84
1
13
14
11
Andres Torres
NYM
904
.924
68
-0
8
8
7
Mike Trout
LAA
885
.954
59
6
1
7
6
Carlos Gomez
MIL
911
.893
72
-6
12
5
5
Cameron Maybin
SDP
1,210
.928
84
1
4
5
4
Jon Jay
STL
993
.892
77
-8
11
4
3
Shane Victorino
PHI/LAD
939
.914
66
-2
4
2
2
Curtis Granderson
NYY
1,364
.926
84
1
-6
-6
-5
Drew Stubbs
CIN
1,107
.955
58
7
-15
-8
-7
Colby Rasmus
TOR
1,237
.920
74
-1
-8
-9
-7
Andrew McCutchen
PIT
1,364
.933
78
3
-12
-9
-8
Michael Brantley
CLE
1,237
.948
64
7
-18
-11
-9
Michael Saunders
SEA
974
.886
59
-9
-5
-14
-12
Dexter Fowler
COL
1,026
.878
62
-10
-6
-16
-13
Adam Jones
BAL
1,458
.908
83
-6
-13
-19
-16
Coco Crisp
OAK
840
.908
39
-4
-16
-20
-17
Matt Kemp
LAD
911
.906
35
-3
-25
-29
-24
B.J. Upton
TBR
1,254
.927
48
1
-35
-34
-29
Data source: FanGraphs.com

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