Kansas City Chiefs stun San Diego Chargers, 30–16

The Chiefs closed as 12-point underdogs and won outright. The betting market gave them a 13% chance.

All 2007 NFL Week 4 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 30, San Diego Chargers 16

   12-point underdog13% to winRecap
   Upset size12
2. Arizona Cardinals 21, Pittsburgh Steelers 14

   5.5-point underdog32% to winRecap
   Upset size5.5
3. Buffalo Bills 17, New York Jets 14

   3.5-point underdog36% to winRecap
   Upset size3.5
4. Cleveland Browns 27, Baltimore Ravens 13

   3.5-point underdog36% to winRecap
   Upset size3.5
5. Oakland Raiders 35, Miami Dolphins 17

   3.5-point underdog36% to winRecap
   Upset size3.5