Los Angeles Rams beat San Francisco 49ers, 21–20

The Rams closed as 5.5-point underdogs and won outright. The betting market gave them a 32% chance.

All 2023 NFL Week 18 upsets, biggest first

An NFL upset is an underdog getting 3.5 or more points on the closing line winning outright. Upset size is the points it overcame. How it’s scored

1. Los Angeles Rams 21, San Francisco 49ers 20

   5.5-point underdog32% to winRecap
   Upset size5.5
2. New York Giants 27, Philadelphia Eagles 10

   4.5-point underdog33% to winRecap
   Upset size4.5
3. Tennessee Titans 28, Jacksonville Jaguars 20

   3.5-point underdog38% to winRecap
   Upset size3.5
4. Kansas City Chiefs 13, Los Angeles Chargers 12

   3.5-point underdog38% to winRecap
   Upset size3.5