Here’s a list of the winning percentage versus P5 opponents for every P5 team
- Alabama 88.1%
- Ohio St 87.7%
- Clemson 82.8%
- Georgia 80.7%
- Oklahoma 74.8%
- Notre Dame 68.4%
- Michigan 68.0%
- Oregon 65.4%
- Wisconsin 65.0%
- Iowa 64.8%
- Utah 64.3%
- Oklahoma St 64.1%
- Penn St 64.0%
- Washington 63.5%
- LSU 62.6%
- USC 62.3%
- TCU 60.0%
- Florida St 60.0%
- Florida 54.5%
- Kansas St 53.9%
- Stanford 53.9%
- Washington St 53.3%
- Minnesota 52.6%
- Michigan St 52.5%
- Texas A&M 52.1%
- Miami 51.9%
- Texas 50.9%
- West Virginia 50.9%
- Baylor 50.5%
- Louisville 50.5%
- Pitt 50.5%
- Houston* 50% (small sample size warning)
- UCLA 49.5%
- NC State 48.9%
- Ole Miss 48.4%
- BYU 47.8%
- Auburn 47.4%
- Tennessee 47.3%
- North Carolina 47.1%
- Northwestern 47.1%
- Virginia Tech 46.9%
- Mississippi St 46.7%
- Kentucky 46.3%
- Arizona St 45.3%
- Missouri 41.3%
- Georgia Tech 41.2%
- Duke 40.8%
- Iowa St 40.6%
- Wake Forest 40.2%
- Cincinnati* 40.0% (small sample size warning)
- Cal 38.3%
- Nebraska 37.5%
- Purdue 37.0%
- Boston College 37.0%
- South Carolina 36.1%
- Texas Tech 35.7%
- Maryland 35.5%
- Arizona 35.2%
- Virginia 34.8%
- UCF* 34.6% (small sample size warning)
- Arkansas 31.9%
- Indiana 31.2%
- Colorado 30.9%
- Oregon St 30.4%
- Illinois 29.4%
- Syracuse 27.2%
- Rutgers 22.7%
- Kansas 17.9%
- Vanderbilt 14.8%
Granted that doesn’t take into account the quality of the P5 opponent so probably isn’t fair to the SEC and B1G. I have a more advanced method/formula I use to account for that and then Utah drops to #13 over the last decade, being passed by LSU and Penn St.
Just thought it was interesting to see the consistent quality