APBRmetrics

Right, at the moment I don't want to reveal the genesis of these, but I will do once I've had a few opinions on these numbers. This is a link to the current ratings as things stand this year under this new box score metric, the rating is per 100 plus-minus style:


Just general comments on how they look/smell to you, as I'm interested to see the reactions before I reveal any detail of their creation.

EDIT: Here is a second box score rating to compare with the first, opinions and preferences regarding each would be interesting:


This rating, like the other, should be interpreted in the same way as a plus-minus variant.

I would say:

They look good.

Defense looks a little under-represented perhaps.

Usage looks a little over weighted, but plausible. Still, pretty sure Beasley should be close to the bottom of the list.

I am pretty sure Al Jefferson is not better than KG, but it is encouraging to see KG so high (and Duncan as well).

I've now updated it up to today and with the full list of players who have played this season. Thanks for your comments DSMok1.

I generally agree with DSMok1 regarding defense; I'll be curious to see how you incorporated it.

The thing that piqued my interest about the way defense is accounted for are the numbers for some of the Golden State players. David Lee and Harrison Barnes seems a bit too high to me and Curry seem just a little bit too low, at least given what I personally think about their individual impacts on that end of the floor(I'm not trying to say that I think that Curry is a good defender, just that I think he might get slightly too much statistical blame, generally speaking, for the fact that Golden State's big men are horrible at defending picks).

All but 6 of your top 25 are in the top 35 on usage (amongst 20+ minute per game players). The exceptions were mostly very elite on something else- defense (Horford, Garnett), assists (Paul) or rebounding (D Lee) or just missed the usage cutoff ( D West- 43rd) or were Chris Bosh.

Austin Rivers might be the highest usage guy in the bottom 50 (I didn't check everyone) at about 17%.

I appreciate a boxscore metric scaled to points per 100 posessions (correct?) for ease of comparison with RAPM and difference finding.

You are correct to say it is scaled to marginal points per 100 possessions.

The OP has been updated to include a second, different, box-score metric for comparison.

v-zero wrote:The OP has been updated to include a second, different, box-score metric for comparison.

The second appears to strongly weight team effects--it looks like a ridge-regressed solution or something. It appears relatively okay order wise, but the high end is far to low (the spread is too tight). LeBron, I am sure, is much closer to +10 than +5. Also, the very high ranking of Kevin Love seems a little odd. Okay, Ibaka at #5 is more odd, but still.

Where are people seeing defensive ratings? I just see one rating.

EvanZ wrote:Where are people seeing defensive ratings? I just see one rating.

I was just assuming that defense was incorporated into that rating given the "per-100 +/- style" prompt in the original post.

The rating is just a single rating covering both offence and defence.