Fluffia Philadelphia Eagles’s Donovan McNabb had a perfect passing game, according the the NFL’s quarterback rating system. (No, I’m not an Eagles fan. I’m a Redskins fan, so life has no meaning for me. But I do like and respect McNabb, who has more class than do 50 Eagles fans in a bucket.)
The rating for a perfect passing game is 158.3.
So I did a little research (that means two minutes of Googling) to find out how those crazy quarterback ratings work.
The best explanation I found was here (the site includes a spreadsheet you can download to see the formula in action).