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.

All 2017 NFL Week 12 upsets, biggest first

An NFL upset is an underdog getting 3.5 or more points on the closing line winning outright. Upset size is the points it overcame. How it’s scored

1. Buffalo Bills 16, Kansas City Chiefs 10

   8.5-point underdog24% to winRecap
   Upset size8.5
2. Arizona Cardinals 27, Jacksonville Jaguars 24

   6.5-point underdog30% to winRecap
   Upset size6.5