You Are Here > > BBR Blog > NBA and College Basketball Analysis

SITE NEWS: We are moving all of our site and company news into a single blog for We'll tag all Basketball-Reference content, so you can quickly and easily find the content you want.

Also, our existing Basketball-Reference blog rss feed will be redirected to the new site's feed. // Sports Reference

For more from Neil, check out his new work at

Layups: Referee Efficiency?

Posted by Neil Paine on March 18, 2009

Ryan Parker has a lot of great ideas over at his blog Basketball Geek, and here's another terrific example: Referee Efficiency. No, he doesn't evaluate each and every call made by the zebras... He uses the adjusted +/- framework to evaluate the on-/off-court impact of each ref -- for instance, Derrick Stafford is associated with a league-leading increase in 7.8 points per 100 possessions he’s on the court. Unfortunately, there's no word yet on what Tim Donaghy's impact was...


Comments are closed.