Henry Arundell scored four tries as Bath tightened their grip on second place in the Gallagher Prem with a dominant 69-12 home victory over Newcastle.
Bath came up against an inspired Bordeaux as their Investec Champions Cup campaign ended in a 38-26 semi-final defeat at Stade Atlantique Bordeaux Metropole.
Fin Smith's last-second penalty snatched a breathless 41-38 victory for Prem Rugby leaders Northampton Saints against second-placed Bath at Franklin's Gardens.
A last-minute try by England fly-half Fin Smith saw Northampton Saints snatch a thrilling 35-28 victory over Exeter Chiefs at Sandy Park on Saturday afternoon.
Northampton were denied a Champions Cup semi-final spot for the third successive season after Bath won 43-41 following a late yellow card for England star Henry Pollock.
Bath turned to a quartet of their England backs to turn the tide as they edged into the Champions Cup quarter-finals with a 31-22 victory over Saracens.
Bath finished top of Pool 2 in the Champions Cup with a ruthless 63-10 victory over Edinburgh.
Edinburgh staged a second-half comeback to pick up a hard-fought 26-24 win over Gloucester in the Champions Cup and consigned the visitors to a fifth straight defeat.