APBRmetrics

[dlirag]

A defensive stop is completed after a defender knocks the ball from his opponent's hands and the defender's teammate picks it up. While crediting the two defenders with half a steal each is reasonable, it would be better to determine allocation of defensive credit according to DeanO's probability model. If it were observed in that league that balls deflected from the ballhandler resulted in a turnover 2/3 of the time, then the defender in the above sequence should get 2/3 defensive stop while his teammate gets the other 1/3.

[Mountain]

That would make sense in a defensive credit system set up to split credit to several specific individuals as opposed to giving the credit to just the main actor or to the entire team equally as done under team +/-.

Does a player get credit for a full steal if they recover a block? Seems like credit should be split and the value of the two credits should be worth one possession.

Rebound credit is essentially split between the offense and defense in PER but what if they were split between the rebounder and the rest of his teammates for blocking out or competing for offensive rebound and occupying defenders (perhaps at 2/3, 1/3 shares distributed based on size of rebounding role as shown by actual rebound per game pattern, or at different rates for offensive and defensive rebounds giving the offensive rebounder a larger share of the credit?)

Could interior defense deserve / get a small silver of credit when opposing teams "settle" for midrange jumpshots based on higher TS% of possessions used inside? Could 3 pt line perimeter defenders also get the same treatment for helping shut off that high TS% option? That put more of the help defense of a Duncan or a Bowen into a linear weight system if you went play by play instead of boxscore. Nobody is really doing that now that protrade backed off on full effort (and split credit) defensive scoring.

[kjb]

[94by50]

[Mountain]

Rigt, thanks. Temporary brain lock, on steals.