NFL · 2010 · Week 1 · Monday, September 13, 2010

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.

Final21–14

Upset size4

Chance to win35%

Rank in 201039th of 47

It was the biggest of 2 NFL upsets in 2010 Week 1, and the 39th-biggest of the 2010 season. It was Kansas City Chiefs's only upset win of 2010.

Other NFL upsets in 2010 Week 1

Washington Commanders 13, Dallas Cowboys 7
3.5-point underdog37% to winRecap
Upset size3.5