California stuns No. 3 USC, 34–31

It was unranked California taking down the No. 3 team in the AP poll.

All 2003 Week 6 upsets, biggest first

Upset size is the points the winner overcame on the closing line plus a bonus for beating a ranked team. How it’s scored

1. California 34, No. 3 USC 31

   Unranked beat No. 3Recap
   Upset size11.5
2. Michigan State 20, No. 13 Iowa 10

   Unranked beat No. 13Recap
   Upset size6.5
3. No. 21 Washington State 55, No. 10 Oregon 16

   No. 21 beat No. 10Recap
   Upset size5.5
4. Kansas 35, No. 23 Missouri 14

   Unranked beat No. 23Recap
   Upset size1.5