USC upsets No. 16 Louisville, 42–28

USC closed as a 4.5-point underdog and won outright. It was unranked USC taking down the No. 16 team in the AP poll.

It was the 3rd-biggest of 20 upsets in 2023 Bowl season, and the 49th-biggest of the 2023 season. It was USC's only upset win of 2023.

Other upsets in 2023 Bowl season

1. Boston College 23, No. 17 SMU 14

   13.5-point underdogUnranked beat No. 17Recap
   Upset size18
2. Memphis 36, Iowa State 26

   10.5-point underdogRecap
   Upset size10.5
3. Coastal Carolina 24, San José State 14

   8.5-point underdogRecap
   Upset size8.5
4. Duke 17, Troy 10

   6.5-point underdogRecap
   Upset size6.5
5. Georgia Tech 30, UCF 17

   6.5-point underdogRecap
   Upset size6.5

More: USC upsets · Louisville upsets · all Bowl season upsets · the 2023 season · how upset size works