Kaikorai kept its composure and gave a solid display to beat an ill-disciplined Harbour team at Bishopscourt.
Experienced fullback Matt Direen made the break for a try by winger Dan Hyndman to give Kaikorai a 10-0 lead after just 11 minutes.
But Harbour came back into the game in the last 15 minutes of the first half and a brilliant solo try by centre Siaosi Folau reduced the lead to 10-7 at the break.
Kaikorai tightened its stranglehold on the game in the second spell and took complete control to score three tries.
Direen read the game accurately and was a strong defender.
He was also dangerous on the counter-attack.
Centre Danny van der Voort was able to break through the midfield and halfback Tomasi Palu chose his options effectively.
The Kaikorai pack played as a unit and was powerful on the drive and with the pick and go.
Lock Noa Soqeta was a powerhouse in the pack, Seko Kalou was dominant in the line-out and Kensak Palepoi was dangerous with the ball in hand.
Harbour was disjointed and had no pattern to its play.
It showed ill-discipline and this was highlighted when winger Iloa Lihau was given a yellow card late in the game.
Kaikorai 33 (Dan Hyndman, Tomasi Palu, Mitchell Clarke, Jim Stevenson tries; Danny van der Voort 2 conversions, 3 penalty goals), Harbour 13 (Siaosi Folau try; Craig Sneddon conversion, 2 penalty goals).
Halftime: Kaikorai 10-7.
Referee: Tim Baker.
