In the Premier competition, NPOB bounced back from their opening-round loss to beat Coastal at Rahotu 36-19.
It was a day of milestones. Coastal captain Jeremy Newell played in his 150th Premier match for the club and NPOB wing Jackson Carrington brought up 100 matches. Both were greeted with applause by the large crowd when they ran out onto the field.
NPOB were boosted by the return of Chiefs representatives Kaylum Boshier and Bradley Slater, who both started and scored a try each.
Coastal scored inside six minutes through loose forward Shamus Hurley-Langton, who powered over close to the line.
NPOB hit back with three consecutive tries. The first from Slater, then Carrington on his wing and Boshier, who showed good support play close to the line right on halftime.
The visitors led 22-7 at the break.
Jackson Morgan scored for NPOB immediately after the break to extend the lead. Coastal had a period with the ball in hand but struggled to make it down the right end of the field.
NPOB scored again, but Coastal were finally rewarded late in the second half with Hurley-Langton's second try and one to Daniel Crowley. Both were set up by halfback Logan Crowley, who showed quick thinking after being awarded a penalty.
Taranaki utility back Brayton Northcott-Hill returned for NPOB and kicked for the team in the first half until he was substituted.
Elsewhere, Stratford/Eltham demolished Inglewood 54-11 at Victoria Park to make it two from two in the competition.
After trailing 11-10 at the break, it seemed like anything Stratford/Eltham touched turned to gold in the second half with some excellent tries.
The second-half shutout was revenge for Stratford/Eltham, who were beaten by Inglewood in last year's semi-final.
Inglewood was forced to make some changes from last week.
Tukapa is also unbeaten after their 47-14 win against Spotswood United at Sanders Park.
The home team were 28-0 up inside 20 minutes. They led 33-9 at halftime.
Spotswood United's second half was more competitive.
Clifton beat Southern 23-9 in the final match at the Tikorangi Domain.
The home team led 10-6 at the break. Southern only managed three penalty kicks off the boot of Juan Tantrum.
Moana Pool: Tukapa 6, NPOB 3, Coastal 3, Spotswood United 0
Maunga Pool: Stratford/Eltham 6, Clifton 3, Inglewood 3, Southern 0