Comments on: BBR Rankings: Schedule-Adjusted Offensive and Defensive Ratings (December 17, 2010) http://www.basketball-reference.com/blog/?p=8437 NBA & ABA Basketball Statistics & History Mon, 21 Nov 2011 20:56:04 +0000 hourly 1 https://wordpress.org/?v=4.6 By: DSMok1 http://www.basketball-reference.com/blog/?p=8437&cpage=1#comment-37407 Tue, 21 Dec 2010 21:33:12 +0000 http://www.basketball-reference.com/blog/?p=8437#comment-37407 I just completed an algorithm of my own for ranking teams. Here's how they look, through games of 12/20:

Team	Off	Def	Margin	Pace
BOS	3.6	-6.9	10.5	90.4
MIA	4.1	-4.4	8.5	90.5
LAL	6.6	-1.0	7.6	92.6
SAS	5.5	-2.1	7.5	92.2
DAL	1.8	-4.4	6.2	91.0
UTA	4.9	-0.5	5.4	89.9
CHI	-2.7	-7.3	4.6	91.6
DEN	4.2	1.6	2.6	96.1
NOH	-2.0	-3.8	1.8	90.4
ORL	-0.4	-2.2	1.8	90.7
OKC	3.8	2.1	1.7	92.5
POR	1.0	-0.3	1.3	87.4
MEM	-1.5	-2.5	1.1	92.4
ATL	0.7	-0.3	1.0	90.0
PHI	-1.0	-1.9	0.9	91.3
HOU	3.2	2.3	0.8	93.6
NYK	3.1	2.9	0.3	96.0
PHO	5.9	5.8	0.1	94.7
IND	-3.4	-2.5	-0.9	94.0
MIL	-7.9	-4.8	-3.1	90.1
TOR	1.1	4.7	-3.5	93.5
LAC	-2.0	1.6	-3.6	90.9
GSW	-0.3	4.0	-4.3	94.2
CHA	-4.8	-0.4	-4.4	89.7
NJN	-5.0	0.1	-5.2	89.3
MIN	-2.0	3.9	-5.9	97.4
DET	-1.2	5.3	-6.5	88.4
WAS	-3.7	3.6	-7.3	93.4
CLE	-6.2	3.0	-9.2	92.5
SAC	-5.2	4.5	-9.7	91.6

Differences from Neil's: I included the effect of rest days, and minimized the residuals^1.5, rather than squared residuals.

]]> By: Greyberger http://www.basketball-reference.com/blog/?p=8437&cpage=1#comment-37227 Sat, 18 Dec 2010 22:01:31 +0000 http://www.basketball-reference.com/blog/?p=8437#comment-37227 The Dolphin Rankings (sorting by predictive) fits right in with the others. Dolphin, Hollinger and BBR.com like the same top six. The disagreement in the schedule-adjusted differential schemes is in what it looks like below the Bulls, and whether there's a precipitous drop-off before seven.

BBStats Rankings typically match what I see here, it must use generally the same inputs.

]]> By: Neil Paine http://www.basketball-reference.com/blog/?p=8437&cpage=1#comment-37220 Sat, 18 Dec 2010 19:21:05 +0000 http://www.basketball-reference.com/blog/?p=8437#comment-37220 You should probably throw Andrew Dolphin (co-author of The Book) in there, too:

http://www.dolphinsim.com/ratings/nba/

]]> By: Greyberger http://www.basketball-reference.com/blog/?p=8437&cpage=1#comment-37219 Sat, 18 Dec 2010 19:06:48 +0000 http://www.basketball-reference.com/blog/?p=8437#comment-37219 This is a week for agreement. These rankings and the Hollinger set (as of Saturday afternoon) have the same teams one through six in slightly different order. BBstats' NBA Rankings isn't far off the conventional wisdom, rating the Bulls lower and the Magic higher.

I dig automated rankings. Are there any other prominent/good systems that I didn't mention?

]]> By: Neil Paine http://www.basketball-reference.com/blog/?p=8437&cpage=1#comment-37211 Sat, 18 Dec 2010 17:23:03 +0000 http://www.basketball-reference.com/blog/?p=8437#comment-37211 My bad, totally forgot about that (although in fairness, I was on vacation this past week). I'll try to get to it sometime over the next few weeks.

]]> By: DSMok1 http://www.basketball-reference.com/blog/?p=8437&cpage=1#comment-37196 Sat, 18 Dec 2010 14:55:27 +0000 http://www.basketball-reference.com/blog/?p=8437#comment-37196 I'd still like to see the adjustment for rest days sometime... :-)

]]> By: huevonkiller http://www.basketball-reference.com/blog/?p=8437&cpage=1#comment-37135 Fri, 17 Dec 2010 22:36:58 +0000 http://www.basketball-reference.com/blog/?p=8437#comment-37135 The Celtics start off hot the last few years. 22-5 last year I believe.

However this season, I think age and LeBron will eventually catch up to them.

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