We're 10 weeks through the 2013 college football season, so that means it's time to grade the preseason rankings to see how the polls have held up.
The upper echelon of teams has mostly stayed consistent, with Alabama and Oregon taking care of business.
However, teams like Boise State and USC, who were ranked in the preseason, have seen their seasons implode this year.
Here's how the grading of the preseason AP poll works:
A: 0-2 spots off
B: 3-5 spots off
C: 6-10 spots off
D: 11-20 spots off
F: 21 or more spots off
To give some perspective, here's a breakdown of how many times each grade appears on this list: