The Kansas City Chiefs dominated the rival Las Vegas Raiders to such a thorough degree that it's almost difficult to properly evaluate their longtime enemies, as Andy Reid and Patrick Mahomes dominated time of possession to such a clear degree that the Raiders weren't able to run much of a true gameplan.
Getting shut out 31-0 while Mahomes played against a defense that played like they had heard about the idea of defending receivers but hadn't fully internalized the concept was bad enough, but the true depth of the Raiders' failure made it to historically bad territory.