But while they were profiting against Scottish opposition, rivals Leinster were slipping to a third defeat of the season against Edinburgh at Murrayfield.
But Leamy believes the historic rivalry of the two clubs will mean the form book flies out of the window this weekend.
"This is two of the best teams in European rugby coming face-to-face in a local rivalry," said Leamy, who has won 41 caps for the emerald isle.
"It should be savage. All bets are off. This is different, completely different. What's gone previously really doesn't matter."