Miami Dolphins beat Kansas City Chiefs, 31–3

The Dolphins closed as 5-point underdogs and won outright. The betting market gave them a 32% chance.

It was the 4th-biggest of 5 NFL upsets in 2011 Week 9, and the 28th-biggest of the 2011 season. It was Miami Dolphins's only upset win of 2011.

Other NFL upsets in 2011 Week 9

1. New York Giants 24, New England Patriots 20

   9.5-point underdog18% to winRecap
   Upset size9.5
2. Chicago Bears 30, Philadelphia Eagles 24

   9-point underdog24% to winRecap
   Upset size9
3. Denver Broncos 38, Oakland Raiders 24

   7-point underdog25% to winRecap
   Upset size7
4. Baltimore Ravens 23, Pittsburgh Steelers 20

   3.5-point underdog35% to winRecap
   Upset size3.5

More: Miami Dolphins upsets · Kansas City Chiefs upsets · all Week 9 upsets · how upset size works