SpiffCoug wrote:
mtnradio wrote:
Spiff, i have read your posts over the years with a passing interest, but I can't pretend to understand PER ... for those of us who are still mere pedestrians at this could you explain PER (which I seem to recall is a formula you developed over a period of time as compared to the traditional qb rating) and what the formula is?
Thanks
PER seemed to appear without any explanation. You probably did define it but I don't remember.
PER is short for Passer Efficiency Rating. It's not my formula. I became convinced of it's importance from an article written for Total Blue Sports back in the day. It was written by the guy who manages CougarStats.com. (I still have the article - the data is about 10 years old - but the theory is the same, and if you want to read it, send me a PM and I'll email it to you).
But suffice it to say that throwing the ball efficiently is the single best predictor of who will win a football game. No other single stat (other than the obvious points scored/allowed). I've got PER data going back to 1984. The team with the better PER in those 376 games has won 86.1% of the games. You won't find any other stat with a higher correlation to winning.
The formula for it is in my signature block.
Related, but I've read an article that the most significant estimator of winning a football game is not just PER, it's actually PER differential. The difference between your own PER and the opposition's PER takes into account of how well your offense and defense play.
It's also interesting to compare the difference between NCAA PER and NFL passer rating. Here are the top 5 PER seasons in BYU history (includes bowl games):
1. McMahon ('80) 175.7
2. Detmer ('89) 173.4
3. Beck ('06) 169.1
4. Sarkisian ('96) 168.0
5. Detmer ('91) 166.0
And Here are the top 5 passer rating seasons in BYU history (includes bowl games):
1. Beck ('06) 116.2
2. McMahon ('80) 116.1
3. Sarkisian ('96) 112.6
4. Nielsen ('77) 111.8
5. Young ('83) 111.7
NFL's passer rating has a higher penalty for throwing interceptions, which is why Beck ('06) and Sarkisian ('96) move up the list.