San Francisco 49ers stun Arizona Cardinals, 37–31

The 49ers closed as 10-point underdogs and won outright in overtime. The betting market gave them a 18% chance.

It was the biggest of 3 NFL upsets in 2007 Week 12, and the 6th-biggest of the 2007 season. San Francisco 49ers pulled off 2 other upsets in 2007.

Other NFL upsets in 2007 Week 12

1. Minnesota Vikings 41, New York Giants 17

   7-point underdog24% to winRecap
   Upset size7
2. Oakland Raiders 20, Kansas City Chiefs 17

   4-point underdog33% to winRecap
   Upset size4

San Francisco 49ers’ other 2007 upsets

1. San Francisco 49ers 20, Cincinnati Bengals 13

   Week 159-point underdog23% to winRecap
   Upset size9
2. San Francisco 49ers 21, Tampa Bay Buccaneers 19

   Week 166.5-point underdog28% to winRecap
   Upset size6.5

More: San Francisco 49ers upsets · Arizona Cardinals upsets · all Week 12 upsets · how upset size works