The Greerton captain finished with 35 runs to his name while Campbell Thomas posted a very handy 21 runs batting at No 8.
Hamilton Old Boys' top score of 31 told the tale of a team playing catch-up during the
game.
However, they were right in the contest as the overs ticked over, with the Greerton bowlers finally dismissing their opponents for 166 to claim a 13-run victory.
Henry Collier was the best of the Greerton bowlers with three wickets for 24 runs. Wineti and Umesh Ranaraja both bowled with enthusiasm to be rewarded with two wickets apiece.
Greerton will face the winner of the Northland-Counties Manukau semifinal in the Eric Petrie Cup final.
ND Club Championships semifinal
Greerton 179 (Nick Hendrie 68, Shane Wineti 35, Campbell Thomas 21; Anurag Verma 4-36) beat Hamilton Old Boys 166 (S Singh 31; Henry Collier 3-24, Umesh Ranaraja 2-21, Shane Wineti 2-23)
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