Cincinnati Bengals upset Kansas City Chiefs, 27–24

The Bengals closed as 7-point underdogs and won outright in overtime. The betting market gave them a 27% chance.

All 2021 NFL Conference championships 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. Cincinnati Bengals 27, Kansas City Chiefs 24

   7-point underdog27% to winOTRecap
   Upset size7