Maungakaramea bowler Jason Morgan claimed seven for 31 against Zest Insurance Whangarei Boys' High School as 21 wickets fell in their Oxford Trust two-day game.
Morgan's contribution came at a crucial time as he gave his side the advantage, after they were earlier bowled out for 118.
He picked up his first of seven wickets on Saturday before Boys' High could score a run, giving his side the perfect start before going on to knock them over for 77.
Fellow opening bowler Cody Andrews picked up the other three wickets for 21 runs.
Earlier on Saturday, Boys' High produced a team performance as Fletcher Coutts and Jack Murphy picked up four wickets a piece. Caleb Boswell-Smith and Matthew Lobb also picked up a wicket each.