San Francisco 49ers upset Buffalo Bills, 10–3

The 49ers closed as 6.5-point underdogs and won outright. The betting market gave them a 29% chance.

It was the 2nd-biggest of 3 NFL upsets in 2008 Week 13, and the 17th-biggest of the 2008 season. San Francisco 49ers pulled off 2 other upsets in 2008.

Other NFL upsets in 2008 Week 13

1. Denver Broncos 34, New York Jets 17

   7.5-point underdog24% to winRecap
   Upset size7.5
2. Atlanta Falcons 22, San Diego Chargers 16

   6.5-point underdog30% to winRecap
   Upset size6.5

San Francisco 49ers’ other 2008 upsets

1. San Francisco 49ers 33, Seattle Seahawks 30

   Week 26.5-point underdogOTRecap
   Upset size6.5
2. San Francisco 49ers 24, New York Jets 14

   Week 144-point underdog33% to winRecap
   Upset size4

More: San Francisco 49ers upsets · Buffalo Bills upsets · all Week 13 upsets · how upset size works