College football · NFLTuesday, October 13, 2026
The Upset Report
NFL · 2023 · Week 17 · Sunday, December 31, 2023

Pittsburgh Steelers beat Seattle Seahawks, 30–23

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

Final30–23
Upset size4.5
Chance to win34%
Rank in 202334th of 47

It was the 2nd-biggest of 2 NFL upsets in 2023 Week 17, and the 34th-biggest of the 2023 season. Pittsburgh Steelers pulled off 2 other upsets in 2023.

Other NFL upsets in 2023 Week 17

  1. 12-point underdog15% to winRecap
    Upset size12

Pittsburgh Steelers’ other 2023 upsets

  1. Week 54.5-point underdog33% to winRecap
    Upset size4.5
  2. Week 73.5-point underdog39% to winRecap
    Upset size3.5

More: Pittsburgh Steelers upsets · Seattle Seahawks upsets · all Week 17 upsets · how upset size works