In the main event, Palmerston North's Bishop Poi Poi (20) won the International Sport Karate Association New Zealand professional heavyweight title when Dunedin's Apii Taia (35) was retired by his Hammerhead corner after two of the three scheduled rounds.
Poi Poi (Fightshop) was relentless with his punishing offence on the ground as he wore Taia down with some heavy punches.
Taia had some strong moments in the first round, and early in the second round, but Poi Poi had more of them. Poi Poi grew in confidence, landing several hard right hand head shots, and had a rear naked choke secured as the bell sounded.
With Taia looking hurt, coach Matt Toa ended the fight. It was revenge for Poi Poi after he lost a South Island title fight to Taia in 2013.
''In the end it all came together like pieces in a puzzle, and all the training I had done worked perfectly,'' Poi Poi said.
Toa said Taia was ''obviously disappointed'' but had fought ''his guts out''.
''Fighter safety is my No 1 priority and I just could not send him out in the third,'' Toa said.
Poi Poi took his record to two wins and one loss, and now has two national titles, while Taia went to five and two.
In the co main event, Auckland's John Vake showed why his American Top Team NZ (formally Oliver MMA) club has such a strong reputation when he won the ISKA NZ professional welterweight title with a unanimous decision over Hammerhead's Brogan Anderson.
Vake swarmed on Anderson from the opening bell with aggressive striking. Anderson gained the first takedown but Vake scrambled to his feet and soon gained a takedown of his own.
Both traded leg kicks in the second round before Vake took the fight to the ground, where he stayed in control, mainly from the full and half guard positions.
Vake drove Anderson to the canvas in the third and at one stage had full mount, where he postured up and unloaded punches.
Anderson fought back and never stopped trying, and with a minute to go had his strongest position in the fight with Vake pinned on his back while taking several shots, but it was all too late.
A beaming Vake (eight win, three losses) said the win felt ''awesome'' and ''every minute was a battle''.
Anderson (4-2) was pleased he had finally gone the distance. He said he would learn a lot from it and was not going to stop fighting at welterweight just because of a debut loss.
While two titles eluded the Hammerhead team, it did rack up seven wins.
Lightweight Latham Stevens (4-2) had a methodical split decision win over Queenstown's John Lloyd Haywood (Carlson Gracie), welterweight Pat Hamer (2-0) had a first round TKO of Ollie Low (Cage Fight Academy), and welterweight Terry Perkins (2-1) pushed Josh Mcintosh (StrikeForce) into a second round retirement in the fight of the night.
The most technically impressive were welterweight Renan Secco (Carlson Gracie) for his round one arm bar win, which took him to a five win, one loss record, and StrikeForce bantamweight William Aranguiz (4-0) for his third round rear naked choke win in an intense battle of brute strength against Airana Ngarewa (Fightshop).
In the female MMA fight, strawweight Sarah Archer (Hammerhead) had an entertaining split decision win over Ashleigh Officer (Ultimate MMA).
Fightshop's Taneira Terry and Hammerhead's Shem Murdoch won their respective MMA fights while Melbourne based Dunedin man Chase Haley and Dunedin woman Bex Scholten won unanimous decision kickboxing bouts.
