College football · NFLTuesday, October 13, 2026
The Upset Report
NFL · 2012 · Week 13 · Sunday, December 2, 2012

St. Louis Rams upset San Francisco 49ers, 16–13

The Rams closed as 7-point underdogs and won outright in overtime. The betting market gave them a 25% chance.

Final (OT)16–13
Upset size7
Chance to win25%
Rank in 20128th of 44

It was the 2nd-biggest of 4 NFL upsets in 2012 Week 13, and the 8th-biggest of the 2012 season. St. Louis Rams pulled off 2 other upsets in 2012.

Other NFL upsets in 2012 Week 13

  1. Indianapolis Colts 35, Detroit Lions 33
    7-point underdog26% to winRecap
    Upset size7
  2. Pittsburgh Steelers 23, Baltimore Ravens 20
    7-point underdog27% to winRecap
    Upset size7
  3. Kansas City Chiefs 27, Carolina Panthers 21
    5-point underdog34% to winRecap
    Upset size5

St. Louis Rams’ other 2012 upsets

  1. St. Louis Rams 15, Buffalo Bills 12
    Week 143.5-point underdog36% to winRecap
    Upset size3.5
  2. St. Louis Rams 31, Washington Commanders 28
    Week 23.5-point underdog36% to winRecap
    Upset size3.5

More: St. Louis Rams upsets · San Francisco 49ers upsets · all Week 13 upsets · how upset size works