The competition's surprise side led 29-7 at the break after playing into a strong wind, then cut loose to put the rest of the competition on notice.
Greerton Marist turned in a similarly explosive exhibition in the second 40 to blow Rangataua away 38-10, while Mason Walker followed in Fraser's footsteps by dotting down for four tries in the Mount's 49-0 dismantling of Opotiki.
Tauranga Sports, looking ominous and perhaps even flying under the radar a touch, have been bolstered by former Manawatu captain Hamish Gosling and had 10 different try scorers in their 69-5 win over Rotoiti. Final-round matches between Greerton Marist and Tauranga Sports, and Whakarewarewa and Mount Maunganui, already shape as huge contests.
Rangiuru, who have performed much better in the second half of the season after finding the going tough in the early rounds, will followed in Paroa's footsteps by being one and done in the premier competition.
Their 37-20 loss to Te Puna consigns the club to relegation, meaning their final round match with neighbours Te Puke Sports takes on even greater significance.