No. 17 USC recorded a statement win with a 26-21 victory over No. 21 Iowa at home. The Trojans held the Hawkeyes scoreless in the second half and erased an early 21-7 deficit to move to 8-2 (6-1 Big Ten). USC was powered by another big performance from star wide receiver Makai Lemon, who finished with 10 catches for 153 yards and a touchdown.

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Iowa Hawkeyes football started fast but couldn't finish the job in a loss at rainy Los Angeles Memorial Coliseum.

After taking a 21-7 lead in the second quarter, Iowa was outscored 19-0 to close the game. The Hawkeyes blew the 14-point cushion on their way to a 26-21 loss to USC, adding to what has been a season defined by frustratingly slim margins.

A 27-point comeback win for the No. 3 team in the nation and a potential landscape-altering result in Tuscaloosa headline another chaotic week of college football.

Are the scenarios likely? No. But somewhere in our 100,000 simulations, these chaotic College Football Playoff brackets are possible.