Buffalo Bills upset Kansas City Chiefs, 16–10

The Bills closed as 8.5-point underdogs and won outright. The betting market gave them a 24% chance.

It was the biggest of 2 NFL upsets in 2017 Week 12, and the 6th-biggest of the 2017 season. Buffalo Bills pulled off 2 other upsets in 2017.

Other NFL upsets in 2017 Week 12

1. Arizona Cardinals 27, Jacksonville Jaguars 24

   6.5-point underdog30% to winRecap
   Upset size6.5

Buffalo Bills’ other 2017 upsets

1. Buffalo Bills 23, Atlanta Falcons 17

   Week 48-point underdog23% to winRecap
   Upset size8
2. Buffalo Bills 26, Denver Broncos 16

   Week 33.5-point underdog37% to winRecap
   Upset size3.5

More: Buffalo Bills upsets · Kansas City Chiefs upsets · all Week 12 upsets · how upset size works