Seattle Seahawks beat Dallas Cowboys, 21–12

The Seahawks closed as 4.5-point underdogs and won outright. The betting market gave them a 34% chance.

It was the biggest of 2 NFL upsets in 2017 Week 16, and the 30th-biggest of the 2017 season. Seattle Seahawks pulled off 1 other upset in 2017.

Other NFL upsets in 2017 Week 16

1. San Francisco 49ers 44, Jacksonville Jaguars 33

   4-point underdog34% to winRecap
   Upset size4

Seattle Seahawks’ other 2017 upsets

1. Seattle Seahawks 24, Philadelphia Eagles 10

   Week 133.5-point underdog36% to winRecap
   Upset size3.5

More: Seattle Seahawks upsets · Dallas Cowboys upsets · all Week 16 upsets · how upset size works