Captain Cameron Rutherford was a controlling influence and his accurate goal-kicking was invaluable as Kaikorai staved off a spirited challenge from Green Island at Bishopscourt.
Kaikorai eventually scored four tries to two and won by 18 points, but it was made to work hard by Green Island which competed tenaciously throughout.
Rutherford directed play accurately from first five-eighth and his five goals from six attempts allowed Kaikorai some leeway in what was a tighter contest than the score indicated.
Halfback Tomasi Palu was a dangerous runner and combined well with Rutherford while Richard Cowley was particularly influential when he moved into second five-eighth in the second spell.
Rob Griffiths was an all-action hooker and was rewarded with a try, lock Blair Tweed was good value in the tight and lineouts, and Adam Hill was a hard-driving No 8.
Ben Smith was inspirational for Green Island at second five-eighth.
He pulled off a try-saving corner flag try on Palu, made two clean breaks in midfield and was adept at feeding his outsides.
Sam Erepia and Albert Alapati were hard-running three-quarters, Alex Davies played tidily at first five-eighth ande flankers Jason Bint and Mika Mafi and lock Brett Campbell were the pick of the forwards.
Kaikorai 32 (Fetu'u Vainikolo, Tomasi Palu, Adam Hill, Rob Griffiths tries; Cam Rutherford 2 pen, 3 con), Green Island 14 (Sam Erepia, Jason Bint tries; Alex Davies 2 con).
Halftime: Kaikorai 18-14.
Referee: Ben O'Keefe.
