Despite being a combined competition, both Northern and Aramoho will go forward to represent their province at the Lion Foundation Regional Interclub playoffs in Wellington this coming March.
Wanganui had better success in the other grades, as Castlecliff Bowling Club won the Premier 2 competition.
In the Women's draw, played at Aramoho Bowling Club, the Wanganui East team will claim the title despite rain calling the day off early.
The Manawatu teams have completed all seven rounds, while their Wanganui counterparts have one round left to play.
However, sitting on 30 points, Wanganui East can not be touched by Northern, who finished on 29.
Results
Premier 1 senior men: Northern 29, Aramoho 24, Palmerston North 21, Wanganui East 20 (-19), Wanganui 20 (-20), Terrace End 19, Takaro 18, Durie Hill 17.