1 loss bama wins out
1 loss ND wins out
1 of TCU or Baylor wins out
Clemson wins out.
Boom. No undefeated Iowa. You have to remember there is a chance that if teams hold serve could even FALL and/or get jumped each week even with wins.
Don't fall for the Undefeated Iowa Myth.
It's not a myth. It's my opinion that there is a 0% chance than an undefeated P5 team is left out at the end of the year, regardless of whether it's Iowa or not.