Converting RZR, OOZ to Runs for Shortstops

In previous posts, I looked at the Revised Zone Rating (RZR) and Out-of-Zone Plays (OOZ) metrics listed at FanGraphs.  Links to these posts are provided below:

• Overview

• Conversion of RZR, OOZ to runs

Now, I'm going to to do the above conversion for shortstops.  Table 1 below contains the following information for 22 MLB shortstops 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

The MLB leader was Orioles shortstop J.J. Hardy with +33 RSAA.  Brendan Ryan of Mariners was second at +21.  The worst shortstops according to this measure were Jimmy Rollins of the Phillies, Derek Jeter of the Yankees and Alcides Escobar of the Royals, all with -16. Tigers shortstop Jhonny Peralta is 15th at -3 RSAA.

Intuitively, the list makes quite a bit of sense for the most part.  One surprise is Escobar, who has a reputation as a strong fielder.  He ranked especially low on plays made in the zone where he was last at -19.  This is not the only defensive statistic which rates him poorly though.  He was also -12 on Baseball Prospectus' Fielding Runs Above Average and -12 on Ultimate Zone Rating.  

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

Player	Team	Inn	RZR	OOZ	PIZ AA	OOZ AA	PMAA	RSAA
J.J. Hardy	BAL	1,439	.833	109	13	31	44	33
Brendan Ryan	SEA	1,170	.816	87	4	24	28	21
Mike Aviles	BOS	1,107	.839	71	11	11	22	16
Yunel Escobar	TOR	1,250	.846	72	16	4	20	15
Alexei Ramirez	CHW	1,392	.837	77	13	2	15	11
Elvis Andrus	TEX	1,333	.811	83	3	11	14	10
Everth Cabrera	SDP	915	.814	58	3	9	12	9
Asdrubal Cabrera	CLE	1,161	.792	77	-3	14	11	8
Zack Cozart	CIN	1,163	.824	66	7	3	10	7
Clint Barmes	PIT	1,159	.832	61	11	-2	9	7
Cliff Pennington	OAK	805	.840	42	9	-2	7	5
Rafael Furcal	STL	1,034	.777	67	-8	11	3	2
Starlin Castro	CHC	1,402	.779	88	-9	12	3	2
Brandon Crawford	SFG	1,101	.830	49	10	-11	-0	-0
Jhonny Peralta	DET	1,277	.853	49	16	-20	-4	-3
Ian Desmond	WSN	1,139	.855	40	14	-22	-7	-6
Erick Aybar	LAA	1,189	.793	57	-3	-7	-10	-8
Ruben Tejada	NYM	964	.830	33	7	-19	-12	-9
Jose Reyes	MIA	1,410	.805	56	1	-20	-19	-14
Alcides Escobar	KCR	1,379	.750	73	-19	-2	-21	-16
Derek Jeter	NYY	1,186	.747	61	-18	-3	-21	-16
Jimmy Rollins	PHI	1,364	.815	48	5	-26	-21	-16

 Data source: FanGraphs.com