The Kaikorai forwards took control from the start and paved the way for a commanding win over Green Island at Miller Park.
Green Island helped celebrate Dean Moeahu's 200th premier match in style with its 33-25 victory over Pirates at Forsyth Barr Stadium.
A five-try bag to Harbour's George Folau put the dampers on his opposite's 50th premier division one game for Green Island.
Green Island squandered an early advantage to succumb to a more disciplined Taieri side at Peter Johnstone Park.
Hooker Ben Pereira had his radar tuned in, followed the ball and scored three tries for Alhambra-Union at Miller Park.
A performance straight off the top shelf from the Green Island forward pack set up a memorable victory in the Speight's Challenge Shield match at Bathgate Park.
Green Island blasted to a 17-0 lead in the first five minutes but then took its foot off the accelerator and allowed Zingari-Richmond back into the game at Miller Park.
Fullback Tony Ensor showed his great speed to score the first and last second-half tries that took the game out of Green Island's reach at Bishopscourt.
Centre Roma Roma Sauileoge was in blistering form as Green Island rattled on five tries and 38 points in the second spell at Miller Park.
Taieri beat Green Island at Miller Park because of the superior structure of its game and by the ability of its backline to attack from all parts of the paddock.
Alhambra-Union overcame a sluggish first half to score a comfortable 27-17 win over a tenacious Green Island at the North Ground.
Green Island had Zingari-Richmond captain Chris Bell to thank for its victory in a thriller at Miller Park.
Halfback Mike Moeahu had a blinding game as Green Island scored seven tries to beat University A at the University Oval.
The Harbour forward pack set the foundation for a victory over Green Island at Miller Park.
Southern extended its unbeaten streak with a scratchy win against Green Island at Bathgate Park.
Prop David Smart gave an aggressive display and played a key role in Dunedin's 44-17 win over Green Island at Miller Park.
Taieri regrouped after halftime to shut down a rampant Green Island to then win the battle of Saddle Hill 23-10 at Peter Johnstone Park.
An organised Kaikorai side overcame injuries and a helter-skelter start by the home side to record a convincing 37-19 victory over Green Island at Miller Park.
Pirates beat Green Island 45-27 at Hancock Park because it had more control in the forwards and was able to dictate the game.
Green Island took on Alhambra-Union at Miller Park on Saturday, and scored two tries in the last three minutes to win by a single point.