Buffalo Bills upset Atlanta Falcons, 23–17

The Bills closed as 8-point underdogs and won outright. The betting market gave them a 23% chance.

It was the 2nd-biggest of 4 NFL upsets in 2017 Week 4, and the 9th-biggest of the 2017 season. Buffalo Bills pulled off 2 other upsets in 2017.

Other NFL upsets in 2017 Week 4

1. Carolina Panthers 33, New England Patriots 30

   9-point underdog20% to winRecap
   Upset size9
2. Los Angeles Rams 35, Dallas Cowboys 30

   5-point underdog31% to winRecap
   Upset size5
3. New York Jets 23, Jacksonville Jaguars 20

   4-point underdog36% to winOTRecap
   Upset size4

Buffalo Bills’ other 2017 upsets

1. Buffalo Bills 16, Kansas City Chiefs 10

   Week 128.5-point underdog24% to winRecap
   Upset size8.5
2. Buffalo Bills 26, Denver Broncos 16

   Week 33.5-point underdog37% to winRecap
   Upset size3.5

More: Buffalo Bills upsets · Atlanta Falcons upsets · all Week 4 upsets · how upset size works