The Impact of Top Shot Blockers on Offensive Success
Jul 6th, 2009 by Jon Nichols

The league’s most skilled shot blockers are certainly fun to watch, but are they effective? Although preventing a shot attempt appears to always be a positive thing, there is something to be said for solid interior defense without making the spectacular play. To try to answer the original question, I’ve decided to run a quick study using the lineup data at www.basketballvalue.com.

The lineup data includes each different matchup of five players versus another five that took place during the 2008-09 season. First, I calculated the league average home and away Offensive Ratings. I then calculated the same averages for the lineups that were facing a top 20 shot blocker (based on blocks per 48 minutes). To see what effects those shot blockers had on their own teams’ Offensive Ratings, I calculated those averages as well.

As you can see, having a shot-blocking presence does not appear to improve your defense considerably. This difference is only noticeable when your team is on the road. However, these numbers are largely influenced by Shaquille O’Neal, a top shot blocker who played on a team that both scored and gave up a lot of points, bringing the numbers back to average.

The final verdict: shot blockers do not have a tremendous impact on lowering the opponents’ offensive efficiency. In a world without Shaq, though, things may be different…

Jul 1st, 2009 by Jon Nichols

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