Tyler Lortan (18), Kyran Dill (21), Todd Beehre (33) and Kurtley Watson (24) all contributed valuable runs and time at the wicket.
But each time Northland began to look confident another wicket would fall and finally it was left to number-11 batsman Cameron Johnson to keep his wicket intact while Parlane got the nine runs required to get past Hamilton's total.
On Saturday, Northland won the toss and put the visitors into bat, with Brett Randell (2-40 off 17) and Dill (1-38 off 12) making early in-roads.
Anish Desai (45) was the top-scorer for the visitors as their middle order proved difficult to remove with Sean Beamish removing Desai on his way to 3/24/10 before Hamilton were finally dismissed for 229 in 75.3 overs.