Helping their side to the win and a place in the final, James Thompson (15), Ian Page (32), and Harry Darkins (24 not out) were the stand outs with the bat.
At Bourne Dean Domain, Kaipara Flats were able to starve Kamo of runs to book their spot in the final.
Batting first on a reasonably good deck, Kamo made it to 88 runs before being bowled all out by the Kaipara bowling unit.
Missing several frontline players due to injury and Northland XI duties, Kaipara's batting order could have been deemed frail, but it proved to be strong as the home side chased down Kamo's total for the loss of just two wickets.
Spearheaded by the likes of Ewen Thompson and James Marshall, Kaipara remain in good stead going into this weekend's fixture.
The final between City and Kaipara takes place at Cobham Oval this Sunday.