San Francisco 49ers beat Chicago Bears, 26–20

The 49ers closed as 6-point underdogs and won outright in overtime. The betting market gave them a 30% chance.

It was the 2nd-biggest of 2 NFL upsets in 2015 Week 13, and the 22nd-biggest of the 2015 season. San Francisco 49ers pulled off 1 other upset in 2015.

Other NFL upsets in 2015 Week 13

1. Philadelphia Eagles 35, New England Patriots 28

   9.5-point underdog21% to winRecap
   Upset size9.5

San Francisco 49ers’ other 2015 upsets

1. San Francisco 49ers 17, Atlanta Falcons 16

   Week 99.5-point underdog21% to winRecap
   Upset size9.5

More: San Francisco 49ers upsets · Chicago Bears upsets · all Week 13 upsets · how upset size works