Kansas City Chiefs beat San Diego Chargers, 21–14

The Chiefs closed as 4-point underdogs and won outright. The betting market gave them a 35% chance.

All 2010 NFL Week 1 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 21, San Diego Chargers 14

   4-point underdog35% to winRecap
   Upset size4
2. Washington Commanders 13, Dallas Cowboys 7

   3.5-point underdog37% to winRecap
   Upset size3.5