California upsets No. 18 Arizona, 24–16

It was unranked California taking down the No. 18 team in the AP poll.

It was the 4th-biggest of 5 upsets in 2009 Week 11, and the 32nd-biggest of the 2009 season. California pulled off 1 other upset in 2009.

Other upsets in 2009 Week 11

1. North Carolina 33, No. 12 Miami 24

   Unranked beat No. 12Recap
   Upset size7
2. No. 25 Stanford 55, No. 11 USC 21

   No. 25 beat No. 11Recap
   Upset size7
3. UCF 37, No. 13 Houston 32

   Unranked beat No. 13Recap
   Upset size6.5
4. Rutgers 31, No. 23 South Florida 0

   Unranked beat No. 23Recap
   Upset size1.5

California’s other 2009 upsets

1. California 34, No. 14 Stanford 28

   Week 12Unranked beat No. 14Recap
   Upset size6

More: California upsets · Arizona upsets · all Week 11 upsets · the 2009 season · how upset size works