Bills 51 – Raiders 3 (1993)
The AFC Championship Game isn’t the best time for a team to suffer a record defeat. But that’s exactly what happened as Buffalo inflicted one of the biggest beatdowns in postseason history. Ironically, the Raiders scored first but they quickly fell behind as Buffalo took a 15-3 lead (via USA Today Sports).

This score suggests that the game was all about the Bills’ offense. But their defense was also on fire as Oakland’s two quarterbacks completed just 15 of 39 passes. Kenneth Davis scored a pair of touchdowns as they took a massive lead into halftime before adding 10 points after the break.