[CTcard]

Although I know what you mean, that is not quite the correct definition of "statistic".  "

Well I wasn't going for a dictionary definition.
QBR is a different kind of beast than typical stats for the game, including most advanced stats.
My biggest concern is that despite discussion about what it is supposed to capture, there is no clear published formula - unless I missed it. I cannot reproduce it no matter how much time I put in.

[CTcard]

Although I know what you mean, that is not quite the correct definition of "statistic".  "

Well I wasn't going for a dictionary definition.
QBR is a different kind of beast than typical stats for the game, including most advanced stats.
My biggest concern is that despite discussion about what it is supposed to capture, there is no clear published formula - unless I missed it. I cannot reproduce it no matter how much time I put in.