Kansas City Chiefs upset Chicago Bears, 10–3

The Chiefs closed as 9-point underdogs and won outright. The betting market gave them a 22% chance.

All 2011 NFL Week 13 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. Kansas City Chiefs 10, Chicago Bears 3

   9-point underdog22% to winRecap
   Upset size9
2. Arizona Cardinals 19, Dallas Cowboys 13

   4-point underdog35% to winOTRecap
   Upset size4