South Florida upsets No. 9 Louisville, 45–14

It was unranked South Florida taking down the No. 9 team in the AP poll.

It was the biggest of 4 upsets in 2005 Week 4, and the 11th-biggest of the 2005 season. It was South Florida's only upset win of 2005.

Other upsets in 2005 Week 4

1. Minnesota 42, No. 11 Purdue 35

   Unranked beat No. 11Recap
   Upset size7.5
2. Wisconsin 23, No. 14 Michigan 20

   Unranked beat No. 14Recap
   Upset size6
3. No. 10 Tennessee 30, No. 3 LSU 27

   No. 10 beat No. 3Recap
   Upset size3.5

More: South Florida upsets · Louisville upsets · all Week 4 upsets · the 2005 season · how upset size works