Heres the numbers and % and ranks, using only FBS opponents, from the past 5 years.
http://www.sportslinknetwork.com/cfbtrivia...=on&fgms=30
1. Boise St. (55-9-0)--0.85938
2. Utah (49-14-0)--0.77778
3. TCU (46-16-0)--0.74194
4. BYU (43-19-0)--0.69355
5. Navy (43-20-0)--0.68254
6. Hawaii (43-23-0)--0.65152
7. Tulsa (42-24-0)--0.63636
Stop using numbers that are sliced and diced to make your team look better.