HANG TIME NEW JERSEY – Rim protection is a key element to a good defense. But your center can’t protect the rim if he isn’t there.
And while *our SportVU defensive impact numbers tell us how well opponents shoot when a player is at the rim to defend it, it helps to know just how often he’s actually there.
* Note: After you navigate to the defensive impact page, it helps to set a filter of >= 4 Opp FGA at Rim per game to narrow the list down to big men. At this point in the season, an additional filter of 15 games played eliminates anybody with a small sample size. The filters are found by clicking on the gear on the right side of the blue header bar.
And a further dig into SportVU data can tell us just how often a rim protector is at the rim to protect it.
The defensive impact page shows shots that were taken within five feet of the defender when he was within five feet of the rim. So the shot could have been taken from more than five feet out. To see what rim protectors were most often protecting the rim, I asked the SportVU folks to just show me shots from five feet and in.
So Denver opponents have attempted 202 shots within five feet of the basket with Jusuf Nurkic on the floor, and he’s been there to defend 115 of those shots. Of course, he hasn’t defended them particularly well for a guy who’s seven feet tall.
Andrew Bogut and Rudy Gobert, however, protect the rim pretty well. And by keeping them near the basket, their teams allow them to protect it more often than not. These numbers also don’t account for shots at the rim that they’ve prevented.
Here’s the other end of the list…
Most of the guys on this list spend some time at power forward. LaMarcus Aldridge has played about 75 percent of his minutes with either Robin Lopez or Chris Kaman. But he did play some center after Lopez got hurt and before he was injured himself.
Anthony Davis is a more interesting name on this list. A few weeks ago, I wrote about how the Pelicans allow the highest percentage of opponent shots in the restricted area. That’s still true, the Pelicans still rank as a bottom-six defensive team even though they employ both Davis and Omer Asik, and that’s still rather baffling.
Davis is the power forward when Asik is on the floor. And that he’s sometimes guarding Dirk Nowitzki or Markieff Morris partially explains why he’s on this list.
But Davis would still be on this list if he was the Pelicans’ full-time center. In his minutes without Asik, Alexis Ajinca or Jeff Withey on the floor, Davis has been at the rim to protect only 33.8 percent (125/370) of opponent shots there.
Note: Asik has been at the rim to defend 50.2 percent of opponent shots there, a rate which ranks 19th on this list of 69 centers and PF/Cs. He could certainly be higher on the list himself.
In total, no player 6-foot-8 or taller has been on the floor for more opponent shots within five feet of the basket than Davis. Yet, 20 different guys have been at the rim to defend more of those shots.
Gobert is a few inches taller than Davis, but they’re similarly long-armed and bouncy. For every 100 opponent shots at the rim, Gobert is there to defend 56 of them. Even when he’s playing center, Davis is there for just 34. That’s a big difference.
It’s cool that Davis blocks jump shots, but it would be better if he was defending more shots near the basket. The biggest reason the Pelicans rank in the bottom 10 defensively and can’t win more than two games in a row is that they don’t protect the rim.