Thursday, December 27, 2012

And Finally the Left Fielders

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 left fielders.  Table 1 below contains the following information for 15 MLB left 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 
Twins left fielder Josh Willingham led the majors with +9 Runs Saved Above Average.  He was followed by Alex Gordon of the Royals and Desmond Jennings of the Rays at +8.  The worst left fielder by this metric was Matt Holliday of the Cardinals (-20).  No Tigers are included in the table because they did not have anyone with played 800+ innings.  For what it's worth with such a small sample size, Andy Dirks (+2) and Quintin Berry (+1) were right around average on this metric in under 500 innings.   

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


Player
Team
Inn
RZR
OOZ
PIZ AA
OOZ AA
PMAA
RSAA
Josh Willingham
MIN
1,027
.924
66
5
6
11
9
Alex Gordon
KCR
1,424
.913
89
4
6
10
8
Desmond Jennings
TBR
932
.943
58
6
4
9
8
Ryan Braun
MIL
1,318
.934
78
8
1
9
7
Dayan Viciedo
CHW
1,093
.931
60
6
-4
3
2
Melky Cabrera
SFG
898
.904
53
1
1
2
1
Ryan Ludwick
CIN
929
.942
46
7
-8
-1
-1
Martin Prado
ATL
985
.914
51
2
-7
-4
-3
Carlos Gonzalez
COL
1,127
.853
68
-7
2
-5
-4
Rajai Davis
TOR
856
.851
51
-6
1
-5
-4
David Murphy
TEX
913
.882
50
-2
-3
-5
-4
Alfonso Soriano
CHC
1,183
.882
66
-3
-3
-6
-5
J.D. Martinez
HOU
833
.824
42
-8
-7
-14
-12
Jason Kubel
ARI
1,061
.854
47
-7
-15
-22
-18
Matt Holliday
STL
1,312
.881
56
-3
-21
-24
-20
Data source: FanGraphs.com 

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