APBRmetrics

2015/16 regular season: b-r ORTG nba ORTG wowy ORTG b-r vs wowy nba vs wowy TEAM 105,1 103,0 105,9 -0,8 -2,9 Atlanta Hawks 106,8 103,9 107,2 -0,4 -3,3 Boston Celtics 103,2 100,9 103,9 -0,7 -3 Brooklyn Nets 107,1 105,1 107,9 -0,8 -2,8 Charlotte Hornets 105,0 102,1 105,6 -0,6 -3,5 Chicago Bulls 110,9 ...

As explained in the above link, using the stats.nba.com formula overestimates the number of possessions because it doesn't account for team offensive rebounds. In an individual game, that (as well as the estimate for free throw possessions that any estimator uses) mean the net ratings can get a lit...

I will use 2 games as examples. 2013 finals game 1 http://stats.nba.com/game/#!/0041200401/advanced/ MIA 102.9 ortg SAS 102..3 ortg 87.7 pace (negative net for Spurs despite winning the game) http://www.basketball-reference.com/boxscores/201306060MIA.html MIA 103.5 ortg SAS 108.2 ortg 85.0 pace If w...

Does anyone know why ortg/drtg values are different on nba.com than on basketball-reference or nbawowy? Which source would have more accurate data on team and individual level?

I'm not sure about other rookies, but shouldn't RAPM after about ~25% of season be as good as two years APM? Besides RPM covers almost whole season and Towns is still behind, so he would be even more behind in RAPM, because there is no box score component which gives KAT a lot of value.

RPM from ESPN

9. Jokic +5.9
42. Porzingis +2.7
91. Towns +1.2

RAPM from two sets J.E. posted in February:

single year
20. Jokic +2.8
36. Porzingis +1.9
287. Towns -0.8

multiyear
34. Jokic +2.7
50. Porzingis +2.2
178. Towns -0.2

Any comments on massive advantage Porzingis (and Jokic) has over Towns in RAPM and RPM?

Thx J.E. and I have another questions. PI RAPM RANK 2002 0,5 73 2003 0,9 82 2004 0,3 106 NPI RAPM RANK 2001 2,8 23 2002 3,1 15 2003 2,7 22 2004 0,4 119 MULTIYEAR RAPM RANK 2002 4,6 5 2003 4,9 7 2004 3,9 12 That's TMac's RAPM and rank among all players in given year (NPI and multiyear are from google...

I have a question: is +6 NPI RAPM in year X equal to +6 NPI RAPM in year Y? If not, then why and how we should understand that stat if in one year +6 doesn't mean +6 per 100 possessions?

EvanZ wrote:Here are mine:

https://docs.google.com/spreadsheets/d/ ... =214470020

Thx for that, but I think there's one name too much: Mike Malone

J.E. wrote:Single year NPI for 2001 onwards.

https://www.dropbox.com/sh/11181n4avq5w ... NNHEa?dl=0

Don't have data before that

Hope this works. I currently have all kinds of weird issues with DropBox

Thx. Does it include playoffs?

My request:
PI (with only one previous season as "prior") and NPI RAPM for each season from 1997 (first year PbP is available) to 2015, no box score component, height or age adjustment, just +/- regression.

2011-12 prior informed RAPM (without playoffs): player Offense per 100 Defense per 100 Off+Def per 200 Nowitzki, Dirk (Info) 4,8 3,2 8 Ginobili, Manu (Info) 6,3 0 6,3 James, LeBron (Info) 4,2 1,8 6 Paul, Chris (Info) 5,3 0,7 6 Garnett, Kevin (Info) 2,1 3,6 5,6 Bonner, Matt (Info) 4,4 1 5,4 Collison,...

But the point is that xRAPM isn't "right more often than not" - xRAPM overrates ALL bigs on defense just because they are bigs... No, it's nearer to right more often than RAPM, Any proof? (only defense on individual level, not overall results) and it does not overrate all bigs, but does h...

EDIT: No problem J.E., I'm always bothered by the fixation on 'real' RAPM. That can be true of *any* metric of course, depending on the person using it. There's always the temptation to treat one's 'favorite' or 'go-to' stat as a holy grail summary of player ability. As for the bickering over xRAPM...