Titans battered in final game
They shipped a dozen tries in losing 80-19, eclipsing the 75 points Leicester scored against them in the Premiership in the 2003/04 season and the 76 Exeter racked up four years ago.
The result left Andre Bester's side rock bottom of the Championship play-offs' Pool B.
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Hide AdThey actually led for a stage in the first half with tries by prop Mark George, scrum-half Matt Rhodes and centre Juan Pablo Socino.
Bedford came back to lead 26-19 at the turn-around and ran in eight tries in a hopelessly one-sided second half.
They now progress to the semi-finals while Rotherham must rebuild for next season.