Samu Ezeala scored twice and set up another as Clermont Auvergne outclassed Bath 34-17 in the European Rugby Champions Cup at the Rec.
The Pool 3 clash was nicely poised at the break with Rhys Priestland's converted score for Bath answered by George Moala, who squirmed his way over from close range.
Clermont stole ahead as a couple of Greig Laidlaw penalties sandwiched Priestland's three pointer and were in command when Moala's clever pick-and-go preceded a fine offload for Ezeala to touch down.
Ezeala turned provider for Alexandre Lapandry to further stretch the lead before scoring his second of the night after excellent work from Isaia Toeava.
Jonathan Joseph managed a late consolation for Bath, who with two points to their name from three games have no realistic chance of progressing from the pool stages.
Clermont, conversely, are top of the pool, although Ulster can go back to the summit by beating Harlequins.