No. 9 LSU upsets No. 4 Clemson, 17–10

LSU closed as a 5.5-point underdog and won outright. No. 9 beat No. 4 in the AP poll.

It was the 6th-biggest of 10 upsets in 2025 Week 1, and the 74th-biggest of the 2025 season. It was LSU's only upset win of 2025.

Other upsets in 2025 Week 1

1. Florida State 31, No. 8 Alabama 17

   13.5-point underdogUnranked beat No. 8Recap
   Upset size22.5
2. Austin Peay 34, Middle Tennessee 14

   16.5-point underdogFCS beat FBSRecap
   Upset size16.5
3. Central Michigan 16, San José State 14

   14.5-point underdogRecap
   Upset size14.5
4. Tarleton State 30, Army 27

   14.5-point underdogFCS beat FBSRecap
   Upset size14.5
5. Rice 14, Louisiana 12

   9.5-point underdogRecap
   Upset size9.5

More: LSU upsets · Clemson upsets · all Week 1 upsets · the 2025 season · how upset size works