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NBA Player Ratings:
PER Difference & On/Off Court

Trying to build a comprehensive player rating scheme is no easy task. We'll admit to being partial to the excellent work done by Dan Rosenbaum with his ultra-sophisticated DanVal numbers, or gauging player efficency on a possession basis ala Dean Oliver.

A couple of simpler measures that combined provide some interesting views are the 'PER Difference' numbers based upon John Hollinger's formula as expressed in his excellent Pro Basketball Prospectus books, along with our own in-house 'On Court vs Off Court' team performance metrics.

Put these together, average them (for now at least), and take a look at the salary a player is pulling down and you can quickly get a sense of who some of the more undervalued and overvalued players around the league.

Atlanta
Boston
Chicago
Cleveland
Dallas
Denver
Detroit
Golden State
Houston
Indiana
L.A. Clippers
L.A. Lakers
Memphis
Miami
Milwaukee
Minnesota
New Jersey
New Orleans
New York
Orlando
Philadelphia
Phoenix
Portland
Sacramento
San Antonio
Seattle
Toronto
Utah
Washington

In the table below we show the top fifty players for the 2003-04 regular season with their respective PER numbers, On/Off court effect (per 48 minutes), and averaged PER+On/Off rating. Alongside we print the salary for last season and the coming season (for those under contract: thanks to Mark Lippert for the salary data).

[Minimum: 600 minutes played]
PER Difference
On Court/Off Court
PER +
Salary ($M)
Rk
Player
Tm
PER
Opp
Net
On
Off
Net
On/Off
03-04
04-05
1
 Garnett
MIN
30.9
10.6
+20.3 
+9.2
-11.0
+20.2  +20.3 
$28.0
$16.0
2
 Duncan
SAS
29.2
8.9
+20.3 
+10.5
+1.7
+8.8  +14.6 
$12.0
$13.4
3
 O'Neal
LAL
25.3
10.3
+15.1 
+8.5
-3.6
+12.1  +13.6 
$26.5
$29.5
4
 Kirilenko
UTA
23.6
10.1
+13.5 
+1.4
-8.6
+10.0  +11.8 
$ 1.0
$ 1.7
5
 Cassell
MIN
23.6
15.5
+8.1 
+9.1
-3.7
+12.8  +10.5 
$ 5.3
$ 5.7
6
 WallaceR
DET
19.8
11.7
+8.1 
+15.6
+3.7
+11.9  +10.0 
$18.0
7
 Yao
HOU
22.7
9.4
+13.3 
+3.6
-2.5
+6.1  +9.7 
$ 3.5
$ 3.7
8
 Kidd
NJN
20.4
13.4
+7.0 
+7.1
-5.1
+12.1  +9.6 
$12.2
$13.7
9
 Bryant
LAL
24.4
12.0
+12.4 
+6.1
+0.3
+5.8  +9.1 
$13.5
$14.6
10
 Carter
TOR
20.6
12.1
+8.4 
-0.1
-9.6
+9.4  +8.9 
$12.0
$13.3
11
 Davis
NOH
21.4
13.8
+7.6 
+3.0
-6.8
+9.8  +8.7 
$10.1
$11.3
12
 Boozer
CLE
21.8
14.1
+7.7 
+0.7
-8.7
+9.4  +8.6 
$ 0.6
13
 Miller
IND
16.6
11.1
+5.5 
+10.7
-1.0
+11.7  +8.6 
$ 4.5
$ 4.5
14
 Artest
IND
18.9
11.2
+7.7 
+8.6
-0.6
+9.2  +8.5 
$ 5.2
$ 5.8
15
 Jefferson
NJN
19.0
12.7
+6.2 
+4.7
-5.9
+10.6  +8.4 
$ 1.6
$ 2.3
16
 O'Neal
IND
22.0
12.0
+10.0 
+7.6
+1.1
+6.6  +8.3 
$12.0
$13.4
17
 Miller
SAC
20.4
16.4
+3.9 
+9.2
-3.2
+12.4  +8.2 
$ 7.1
$ 7.8
18
 Nowitzki
DAL
23.4
16.3
+7.1 
+6.7
-1.9
+8.6  +7.9 
$12.0
$13.3
19
 Allen
SEA
22.5
12.5
+10.0 
+2.0
-3.7
+5.7  +7.9 
$13.5
$14.6
20
 McGrady
ORL
25.9
15.3
+10.6 
-5.6
-10.1
+4.4  +7.5 
$13.3
$14.5
21
 Foster
IND
17.3
13.3
+4.0 
+11.1
+0.5
+10.6  +7.3 
$ 3.9
$ 4.4
22
 Stojakovic
SAC
22.6
15.8
+6.8 
+6.2
-0.9
+7.1  +7.0 
$ 7.0
$ 7.7
23
 Nene
DEN
15.6
14.6
+0.9 
+5.4
-6.6
+12.1  +6.5 
$ 1.9
$ 2.0
24
 Cardinal
GSW
20.3
15.6
+4.6 
+4.2
-4.2
+8.4  +6.5 
$ 0.7
25
 Haywood
WAS
17.9
10.3
+7.6 
-2.4
-7.6
+5.1  +6.4 
$ 1.1
$ 1.7
26
 Ratliff
POR
17.4
11.0
+6.4 
+3.5
-2.8
+6.3  +6.4 
$10.2
$10.9
27
 Ginobili
SAS
19.7
11.1
+8.6 
+8.8
+5.4
+3.4  +6.0 
$ 1.5
28
 Wallace
DET
18.2
11.5
+6.7 
+6.8
+2.2
+4.6  +5.7 
$ 5.5
$ 6.0
29
 Brand
LAC
24.0
14.7
+9.3 
-4.2
-5.8
+1.6  +5.5 
$11.0
$12.1
30
 Giricek
UTA
16.9
10.0
+6.9 
+2.2
-1.9
+4.1  +5.5 
$ 1.5
31
 Turkoglu
SAS
15.0
11.8
+3.2 
+11.0
+3.3
+7.6  +5.4 
$ 2.0
$ 2.8
32
 Tinsley
IND
17.2
15.7
+1.5 
+11.7
+2.5
+9.2  +5.4 
$ 0.9
$ 1.6
33
 Billups
DET
19.1
13.0
+6.1 
+7.1
+2.6
+4.5  +5.3 
$ 5.0
$ 5.5
34
 Maggette
LAC
20.7
14.7
+6.0 
-3.2
-7.6
+4.3  +5.2 
$ 5.9
$ 6.5
35
 Abdur-Rahim
ATL
21.9
14.1
+7.8 
-3.3
-5.8
+2.5  +5.2 
$13.5
$14.6
36
 Martin
NJN
19.7
13.5
+6.2 
+4.2
+0.3
+3.9  +5.1 
$ 5.1
$ 6.7
37
 Claxton
GSW
18.0
14.8
+3.2 
+3.4
-3.5
+6.9  +5.1 
$ 3.0
$ 3.3
38
 Jamison
DAL
22.0
15.0
+7.0 
+5.6
+2.7
+2.9  +5.0 
$12.0
$13.3
39
 Sura
ATL
19.1
15.9
+3.3 
+0.4
-6.2
+6.6  +5.0 
$ 6.2
40
 Miller
DEN
19.8
16.4
+3.4 
+2.8
-3.3
+6.1  +4.8 
$ 6.6
$ 7.3
41
 Malone
LAL
18.6
15.0
+3.6 
+7.8
+1.9
+5.9  +4.8 
$ 1.5
$ 1.5
42
 Okur
DET
19.1
13.6
+5.5 
+7.7
+4.4
+3.3  +4.4 
$ 1.1
43
 Payton
LAL
17.8
15.3
+2.6 
+5.6
-0.4
+6.0  +4.3 
$ 4.9
$ 5.5
44
 Mason
MIL
16.2
13.8
+2.4 
+3.3
-2.8
+6.1  +4.3 
$ 1.9
$ 6.4
45
 Daniels
SEA
20.5
15.2
+5.3 
+1.4
-1.9
+3.3  +4.3 
$ 2.0
$ 2.2
46
 Szczerbiak
MIN
15.9
9.4
+6.4 
+7.4
+5.2
+2.2  +4.3 
$ 8.0
$ 9.0
47
 Pierce
BOS
20.2
13.4
+6.7 
-1.1
-2.7
+1.7  +4.2 
$12.0
$13.3
48
 Jones
MIA
17.4
12.5
+4.9 
+1.4
-2.1
+3.4  +4.2 
$12.3
$13.4
49
 Gasol
MEM
22.6
13.6
+9.0 
+2.1
+2.8
-0.7  +4.2 
$ 3.4
$ 4.3
50
 Divac
SAC
16.9
13.9
+3.0 
+7.2
+1.8
+5.4  +4.2 
$12.1

Combining the two player evaluation systems gives Kevin Garnett a healthy lead over the rest of the NBA, and surprisingly the two components have almost identical ratings (+20.3 on the PER Diff, +20.2 on the On/Off).

On a purely value based level however, it's hard to get past Andrei Kirilenko's incredible #4 ranking with a paltry $1 Million salary. Cassell, Yao, Boozer and Jefferson are some of the clear high-production, low cost winners.


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