JordansBulls

05-15-2009, 01:05 AM

http://www.basketball-reference.com/blog/?p=1415

The other day, I talked at some length about “statistical plus/minus,” which is just a regression of pure adjusted +/- on the conventional boxscore stats. In that post, I looked into the possibility of predicting the following season using a weighted average of the 3 previous seasons’ SPM scores, but I realize that I sort of skimmed over the statistical +/- metric itself — what are its strengths and weaknesses? What kind of players does it overrate and underrate?

In an effort to better understand the metric and answer these questions, I calculated the career leaders in SPM (combined NBA + ABA, minimum 15,000 career MP) through last Saturday’s games. Here’s the list:

Player Pos G Min SPM

---------------+--+----------+--------+------

michaeljordan G 1072 41013 12.85

wiltchamberlain C 1045 47859 11.59

davidrobinson C 987 34272 10.79

lebronjames F 444 18083 10.00

charlesbarkley F 1073 39330 9.03

k.abdul-jabbar C 1560 57446 9.01

magicjohnson G 906 33245 8.82

larrybird F 897 34443 8.81

juliuserving F 1243 45227 8.57

shaquilleo'neal C 1089 39103 8.21

bobpettit F 792 30690 7.87

clydedrexler G 1086 37537 7.79

oscarrobertson G 1040 43886 7.75

hakeemolajuwon C 1238 44222 7.70

elginbaylor F 846 33863 7.59

karlmalone F 1476 54852 7.50

andreikirilenko F 533 16671 7.37

timduncan F 877 32481 7.30

tracymcgrady F 784 27463 7.12

kevingarnett F 1051 39570 6.91

boblanier C 959 32103 6.24

kobebryant G 921 33584 6.22

jerrywest G 932 36571 6.17

bobbyjones F 941 25728 6.16

conniehawkins F 616 22232 6.08

dirknowitzki F 812 29663 5.97

neiljohnston C 516 18298 5.94

vincecarter G 752 28333 5.88

billrussell C 963 40726 5.85

larrynance F 920 30697 5.74

dolphschayes F 866 29800 5.65

johnstockton G 1504 47764 5.63

rickbarry F 1020 38153 5.56

waltfrazier G 825 30965 5.45

paulpierce F 788 29570 5.30

The other day, I talked at some length about “statistical plus/minus,” which is just a regression of pure adjusted +/- on the conventional boxscore stats. In that post, I looked into the possibility of predicting the following season using a weighted average of the 3 previous seasons’ SPM scores, but I realize that I sort of skimmed over the statistical +/- metric itself — what are its strengths and weaknesses? What kind of players does it overrate and underrate?

In an effort to better understand the metric and answer these questions, I calculated the career leaders in SPM (combined NBA + ABA, minimum 15,000 career MP) through last Saturday’s games. Here’s the list:

Player Pos G Min SPM

---------------+--+----------+--------+------

michaeljordan G 1072 41013 12.85

wiltchamberlain C 1045 47859 11.59

davidrobinson C 987 34272 10.79

lebronjames F 444 18083 10.00

charlesbarkley F 1073 39330 9.03

k.abdul-jabbar C 1560 57446 9.01

magicjohnson G 906 33245 8.82

larrybird F 897 34443 8.81

juliuserving F 1243 45227 8.57

shaquilleo'neal C 1089 39103 8.21

bobpettit F 792 30690 7.87

clydedrexler G 1086 37537 7.79

oscarrobertson G 1040 43886 7.75

hakeemolajuwon C 1238 44222 7.70

elginbaylor F 846 33863 7.59

karlmalone F 1476 54852 7.50

andreikirilenko F 533 16671 7.37

timduncan F 877 32481 7.30

tracymcgrady F 784 27463 7.12

kevingarnett F 1051 39570 6.91

boblanier C 959 32103 6.24

kobebryant G 921 33584 6.22

jerrywest G 932 36571 6.17

bobbyjones F 941 25728 6.16

conniehawkins F 616 22232 6.08

dirknowitzki F 812 29663 5.97

neiljohnston C 516 18298 5.94

vincecarter G 752 28333 5.88

billrussell C 963 40726 5.85

larrynance F 920 30697 5.74

dolphschayes F 866 29800 5.65

johnstockton G 1504 47764 5.63

rickbarry F 1020 38153 5.56

waltfrazier G 825 30965 5.45

paulpierce F 788 29570 5.30