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 right fielders. Table 1 below contains the following information for 18 MLB right fiielders 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
When the Tigers acquired Torii Hunter earlier this off-season, they saw him as an upgrade both offensively and defensively. The Tigers' most frequent right fielder last season was Brennan Boesch who cost the Tigers an estimated -11 runs defensively according to RSAA. In contrast, Hunter was an estimated +11 runs better that the average right fielder. If his defense is the same in 2013, that would be a +22 run or two win improvement over Boesch.
What is interesting is how the two outfielders got to their final run saved/cost figures. According to these zone rating statistics, Boesch was actually better than Hunter on in-zone plays last year (+5 versus -1). However, Hunter was a stunning 32 plays better outside the zone (+13 versus -19). So, we can expect Hunter to cover a lot more ground in the outfield in 2013 than Boesch did in 2012.
Table 1: Runs Saved by MLB Right Fielders According to RZR, OOZ, 2012
Player
|
Team
|
Inn
|
RZR
|
OOZ
|
PIZ
AA
|
OOZ
AA
|
PMAA
|
RSAA
|
Alex
Rios
|
CHW
|
1,369
|
.934
|
107
|
5
|
26
|
31
|
26
|
Jason
Heyward
|
ATL
|
1,337
|
.943
|
98
|
7
|
19
|
26
|
22
|
Josh
Reddick
|
OAK
|
1,179
|
.924
|
93
|
2
|
24
|
25
|
21
|
Giancarlo
Stanton
|
MIA
|
1,034
|
.897
|
82
|
-3
|
21
|
18
|
15
|
Torii
Hunter
|
LAA
|
1,112
|
.910
|
79
|
-1
|
13
|
13
|
11
|
Ichiro
Suzuki
|
SEA/NYY
|
1,072
|
.967
|
63
|
10
|
-0
|
9
|
8
|
Justin
Upton
|
ARI
|
1,280
|
.919
|
83
|
1
|
8
|
9
|
7
|
Nick
Swisher
|
NYY
|
907
|
.905
|
63
|
-2
|
10
|
8
|
7
|
Norichika
Aoki
|
MIL
|
896
|
.889
|
59
|
-4
|
6
|
2
|
2
|
Carlos
Beltran
|
STL
|
1,126
|
.898
|
70
|
-3
|
4
|
1
|
1
|
Hunter
Pence
|
PHI/SF
|
1,408
|
.918
|
80
|
1
|
-3
|
-2
|
-2
|
Jay
Bruce
|
CIN
|
1,343
|
.908
|
70
|
-2
|
-9
|
-11
|
-9
|
Andre
Ethier
|
LAD
|
1,256
|
.947
|
57
|
6
|
-17
|
-11
|
-9
|
Nick
Markakis
|
BAL
|
926
|
.886
|
47
|
-4
|
-8
|
-12
|
-10
|
Brennan
Boesch
|
DET
|
909
|
.950
|
35
|
5
|
-19
|
-14
|
-11
|
Nelson
Cruz
|
TEX
|
1,286
|
.869
|
73
|
-11
|
-3
|
-14
|
-12
|
Shin-Soo Choo
|
CLE
|
1,331
|
.920
|
63
|
2
|
-15
|
-14
|
-12
|
Jeff
Francoeur
|
KCR
|
1,283
|
.916
|
46
|
0
|
-30
|
-29
|
-25
|
Data source: FanGraphs.com
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