Taieri 58 lost to Kaikorai 59 for three by seven wickets
The competition frontrunners went into the match needing a win to secure the senior banner and Michael Fraser helped ease any jitters in the camp when he bowled opener Cameron McAuslan with his fourth ball.
He really got his inswinger going nicely and removed Toby Batchelor in his next over and had the dangerman, Josh Tasman-Jones, caught not too long after that. Taieri had slumped to 17 for three and there was to be no heroic recovery.
Fraser finished with five for 22 as Taieri collapsed to be all out for just 58. Geordie Scott confirmed his favouritism for club player of the year with three for nine.
Kaikorai conceded 17 extras which was the top score in the Taieri innings.
Regan Flaws (12) and Andrew Grubb (10) were the only Taieri batsmen to post double figures.
Kaikorai lost three wickets during the chase but that was largely down to the haste at which the batsmen pursued the target.
The winning runs were scored in the 11th over to secure a 1.30pm finish. Opener Dan Sharples swatted 21 from 10 deliveries and Josh Finnie made 13 not out.
Green Island 132 lost to NEV 134 for eight by two wickets
Jamie Murley and Keegan Harrison guided North East Valley to a tense two-wicket win against Green Island in a low-scoring game at Sunnyvale.
The home side could muster only 132 but that very nearly proved enough with North East Valley crashing to 95 for eight.
Murley and Harrison had earlier played a big role in Green Island's demise.
Harrison accounted for the top order, taking four for 24 from 10 wonderful overs, and Murley proved a handful as well, taking two for 19 from his 10-over allotment.
And off-spinner Hunter Kindley's three for 19 should not be forgotten, either.
An undefeated 31 from Bradley Scott and 23 from Joel Mead saved Green Island from further blushes.
But the modest total seemed a long way off after Dion Lobb (four for 37) and Blair Soper (two for 39) had got stuck into North East Valley's batting line-up.
Chris Beck began the resistance with 27 from 57 deliveries but it was Murley's 33 not out with support from Harrison (15 from 24) which got Valley to the target.
Harrison had the last say, though. He whacked a free ball from Soper over the long on boundary for six to seal the win.
Carisbrook-Dunedin 95 lost to Albion 98 for five by five wickets
Ball dominated bat at Tonga Park but Albion's Daniel Duke was not complaining. The right-armer took three wickets in his first over and one each in his next two to finish with five for 22 from five overs.
That first over was quite something. He trapped Max Chu lbw, bowled former Otago batsman Brad Rodden for a golden duck and nicked off Anjas Bhogal a couple of deliveries later.
He missed out on a hat-trick but left Carisbrook-Dunedin's innings in ruin.
When he trapped Rhys Phillips lbw first ball of his second over, he had taken four wickets in five balls.
Nick Eathorne (35) and Kane McKay (19) added 48 for the seventh-wicket to help their side reach a modest total of 95.
Albion opener Taylor Cumberland carried his bat, scoring 31 from 36 deliveries in a chase which was not without its hiccups.
Albion lost five wickets in the pursuit and that was mostly down to Chris Ware.
He bowled from one end continuously and took three for 41.
But Otago left-arm spinner Nick Beard helped steady the innings with 14 not out.
