Defensive rating or defensive efficiency is a statistic used in basketball to measure an individual player's efficiency at preventing the other team from scoring points.
It was created by author and statistician Dean Oliver.
[1] Oliver introduced the defensive rating statistic in his 2004 book, Basketball on Paper.
Gar Heard's 95.30 defensive rating is the NBA's all-time career record.
[3] Ben Wallace's 87.48 defensive rating in 2003–2004 is the single-season record.