Total QBR updates for 2013
Total QBR was introduced in 2011 to improve upon the NFL passer rating by accounting for more of what a quarterback does, including his rushes, scrambles, fumbles and sacks. It also accounts for when things happen -- 5 yards on third-and-4 being more meaningful than 5 yards on third-and-14, for instance.
As QBR enters its third NFL season of use, we have found a few additional things to improve it, as we did last year.
The biggest change is how clutch weighting is done. ...
Read full story