Chicago Bears stun Kansas City Chiefs, 18–17

The Bears closed as 10-point underdogs and won outright. The betting market gave them a 21% chance.

All 2015 NFL Week 5 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. Chicago Bears 18, Kansas City Chiefs 17

   10-point underdog21% to winRecap
   Upset size10
2. Cleveland Browns 33, Baltimore Ravens 30

   6-point underdog30% to winOTRecap
   Upset size6
3. Indianapolis Colts 27, Houston Texans 20

   4.5-point underdog34% to winRecap
   Upset size4.5
4. Pittsburgh Steelers 24, San Diego Chargers 20

   4-point underdog34% to winRecap
   Upset size4