Pirates have now set a record of being the only club to beat Heathens in three consecutive games
Coach Athio Muhammad says winning the league is just a starter to his long list of targets.
Kobs have the unfortunate job of hosting their local rivals on the day they will be receiving their trophy.
"I know Heathens are in the lead but it is too early to judge the winner."
Holders Kobs started well but crumbled in the second half.
Heathens are five points clear at the top of the log while Kobs have 28 points.
Kobs took a 7-0 early lead in the first half but crumbled along the way as they ended the first half trailing.
The game lived to its billing as fans, coaches, referees and team officials were kept on the edge for the 80 minutes of play.
The home side clawed back into the game, catching up on 20-20, before conceding two consecutive tries and a direct penalty
Hima Cement Heathens had to sweat for their bonus point win against hard fighting Mutoni Warriors at Kyadondo Rugby Club.
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