THE Central Coast sides dominated round four of the Wilson Security Black Diamond Cup competition.
Killarney Vale and Terrigal Avoca recorded wins, while Nelson Bay won the battle of the Bays.
At Bateau Bay, Terrigal Avoca had to withstand a determined Cardiff outfit, pulling away after half-time to win 13.18 (96) to 8.8 (56).
At Dick Burwell Oval, Nelson Bay ran out 44-point winners over Warners Bay, 14.20 (104) to 9.6 (60).
In blustery conditions, both teams struggled to take clean possessions, making scoring tough.
Nelson Bay cruised to victory, delighting the large crowd on the annual Nelson Bay Ladies Day.
Nelson Bay skipper Blake Erickson picked up numerous possessions and received support from Adam Grinyer, Ben Thompson and Joel Erickson.
Burns, Stewart and Jake Roach were the best of a disappointing Warners Bay outfit.
In the final game, Singleton's travelling woes continued when they were completely outplayed by a dominant Killarney Vale, who recorded their second consecutive 100-plus point win. The final score was 26.27 (183) to 6.2 (38).
The Bombers dominated from the outset and by half-time they had opened up a 108-point lead and kept the Roosters goalless.
To Singleton's credit, they managed to triple their score in the final quarter. However, the club will need to overcome its aversion to travelling if it is going to make an impact in this competition.
Newcastle City had the bye at the weekend.