At that stage the scoreboard attendants might have wondered about repetitive strain injury clauses in their employment contracts.
But as quickly as the match broke open, it settled, apart from one superb length-of-the-field try from Wellington.
They ran the ball from their line, got the benefit of a lost pass which bounced off a goalpost and about 20 seconds later Alipate Leiua completed the move at the other end of Baypark Stadium.
It was a glorious example of concentrated interaction, one the Bay emulated after the break when Lelia Masaga scored from a setplay after setting up the chance with a weaving 50m run downfield.
In between there were brilliant cameos and patches of uncertainty with neither side able to break free as kickers Lima Sopoaga and Chris Noakes kept adding points.
Tim Bateman's intercept 10 minutes from time should have sealed the game for Wellington but he was cut down by replacement Jack Wilson.
However the visiting side had enough composure to pin the Bay in their half and secure victory when their stronger scrum earned another penalty.
Wellington 36 (Ross Filipo, Alipate Leiua, Shaun Treeby tries; Lima Sopoaga 5 pen, 3 con)
Bay of Plenty 26 (Mafileo Kefu, Lelia Masaga tries; Chris Noakes 4 pen, 2 con)
Halftime: 23-16 Wellington