College football · NFLTuesday, October 13, 2026
The Upset Report
NFL · 2023 · Week 18 · Sunday, January 7, 2024

Kansas City Chiefs beat Los Angeles Chargers, 13–12

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

Final13–12
Upset size3.5
Chance to win38%
Rank in 202345th of 47

It was the 4th-biggest of 4 NFL upsets in 2023 Week 18, and the 45th-biggest of the 2023 season. Kansas City Chiefs pulled off 1 other upset in 2023.

Other NFL upsets in 2023 Week 18

  1. 5.5-point underdog32% to winRecap
    Upset size5.5
  2. 4.5-point underdog33% to winRecap
    Upset size4.5
  3. 3.5-point underdog38% to winRecap
    Upset size3.5

Kansas City Chiefs’ other 2023 upsets

  1. Upset size4.5

More: Kansas City Chiefs upsets · Los Angeles Chargers upsets · all Week 18 upsets · how upset size works