The defending champions were unbeaten with 63 points, five ahead of challenger Betway Kobs (58pts).
At Legends ground the Barrels Warriors beat Jinja Hippos 26-20 to stay in the second position on the log while Buffaloes defeated hosts Shell Rimula Rhinos...
Rhinos are second on the table with 10 points, a point ahead of Mongers in fourth position with nine points
Pirates have now set a record of being the only club to beat Heathens in three consecutive games
After the interval, Buffaloes launched a spirited fight, but it was a little too late.
"We are in a bad position and we are going in this game to redeem ourselves."
In the games of the weekend, Betway Kobs smashed Rams 38-0 to maintain their lead on the table standing as they chase the title this year.
BetWay Kobs who finished the first round unbeaten will be out to stretch their lead atop the table when they host Gulu Elephants
We just made a few mistakes and we were punished by Heathens but we are out to revenge against Pirates - Mongers
Hima Cement Heathens had to sweat for their bonus point win against hard fighting Mutoni Warriors at Kyadondo Rugby Club.
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