Pittsburgh Steelers upset Buffalo Bills, 23–16

The Steelers closed as 6.5-point underdogs and won outright. The betting market gave them a 29% chance.

It was the biggest of 5 NFL upsets in 2021 Week 1, and the 26th-biggest of the 2021 season. Pittsburgh Steelers pulled off 2 other upsets in 2021.

Other NFL upsets in 2021 Week 1

1. New Orleans Saints 38, Green Bay Packers 3

   4-point underdog37% to winRecap
   Upset size4
2. Philadelphia Eagles 32, Atlanta Falcons 6

   3.5-point underdog37% to winRecap
   Upset size3.5
3. Houston Texans 37, Jacksonville Jaguars 21

   3.5-point underdog38% to winRecap
   Upset size3.5
4. Miami Dolphins 17, New England Patriots 16

   3.5-point underdog38% to winRecap
   Upset size3.5

Pittsburgh Steelers’ other 2021 upsets

1. Pittsburgh Steelers 15, Cleveland Browns 10

   Week 85.5-point underdog33% to winRecap
   Upset size5.5
2. Pittsburgh Steelers 20, Baltimore Ravens 19

   Week 134-point underdog36% to winRecap
   Upset size4

More: Pittsburgh Steelers upsets · Buffalo Bills upsets · all Week 1 upsets · how upset size works