@DeJesus Built My Hotrod Moving the Kanter discussion over here because I got a bit more info on the Kanter p+r situation though it's only a partial answer. After being confused by the numbers on nba.com I sent a tweet to synergy, and had a dm conversation with whoever it is they have handling that account, heres what I got:
-The 61% number is his offense p+r stats as the roller, the 31% is his defense when he stays home and defends the roll (not very often apparently, .9 times per game, still not sure what the frequency number means).
- According to whoever I talked to, teams actually run P+R at him about 9x more often where he switches than where he stays home, and on those plays where he ends up on the ball handler he allows 45% shooting. Not sure how many shots that is, how many ended in fouls, or what exactly it includes, this info isn't on NBA.com, the only way to get it is with a synergy subscription which I don't have, he just gave me that number.
I'm not sure if anywhere tracks publicly tracks possessions per player, but the Cs run about 103 possessions per game, so that's probably about 45 plays a game where he's on the court, so if those numbers are right teams run p+r at him about 20% of the time, which seems feasible. The field goal percentage part I'm not sure about, 31% and 45% both seem really good, but without any more context to the 45% (the majority of his plays), it's hard to really make anything of it. I don't even know if the 9x thing refers to how many shots, or just how often they run it at him, though I'm pretty sure it's not shots because he only defends 9.4 fgs a game overall (at a slightly below average level). I asked if those numbers meant he actually wasn't a bad p+r defender this year, and they said that they hadn't actually watched much of him this year so it was too complicated to say. I also asked if they laid out anywhere how they determined the primary defender on shots, and they said that wasn't available publicly anywhere, so really who knows, given that I'm pretty sure it's done by a bunch of people being paid minimumish wage.
So yeah, not sure if any of that makes anything clearer, and unless someone has a synergy account I'm not sure we'll get any more answers other than anecdotally. Team defense appears to be a bit worse when he's on than off (47-37 on vs 46-35 off with a slightly higher fta rate when he's on), metrics all say he's having a good defensive year, though they say that about most of the team as expected, and overall the team is better when he's on the court, obviously some of that is him only being put in situations where they expect him to suceed.