Let's do 9 wins or greater. I would guess that each conference has at least 1 10-win and 1 9-win team on average, each season. Some years there are 2 10-win teams, or 2 9-win teams or some combination thereof.Reality is you can count up the number of head coaches who have won 10 games in a year in D1 football in the last 20 years pretty quick. Put that number on top of the total number of D1 head coaches in the last 20 years and you’ll see that the odds of finding that guy is a beating
That means that on the low average, 22 teams in the FBS hit the 9-win mark (or greater) each year. That comes out to about 17-18%.