College football · NFLTuesday, October 13, 2026
The Upset Report
NFL · 2015 · Week 1 · Sunday, September 13, 2015

St. Louis Rams beat Seattle Seahawks, 34–31

The Rams closed as 3.5-point underdogs and won outright in overtime. The betting market gave them a 38% chance.

Final (OT)34–31
Upset size3.5
Chance to win38%
Rank in 201550th of 50

It was the biggest of 2 NFL upsets in 2015 Week 1, and the 50th-biggest of the 2015 season. St. Louis Rams pulled off 2 other upsets in 2015.

Other NFL upsets in 2015 Week 1

  1. Atlanta Falcons 26, Philadelphia Eagles 24
    3.5-point underdog38% to winRecap
    Upset size3.5

St. Louis Rams’ other 2015 upsets

  1. St. Louis Rams 23, Seattle Seahawks 17
    Week 1611-point underdog17% to winRecap
    Upset size11
  2. St. Louis Rams 24, Arizona Cardinals 22
    Week 47-point underdog28% to winRecap
    Upset size7

More: St. Louis Rams upsets · Seattle Seahawks upsets · all Week 1 upsets · how upset size works