Bath have games in hand on every team above them in the table bar third-placed Gloucester and the run of defeats was against the top three in the league.
The defeat means the Canaries slip below Nottingham Forest into third in the table and brings an end to their eight-game unbeaten run in the Championship.
Some argue that even if the Broncos run the table they should not be in the BCS Championship game over 1-loss SEC, Big 12, or Big 10 teams who face more difficult schedules.