It was Kasey Watson's last year of competing in the senior boys division, which is for under 14-year-old's.
As well as the open weight of that class he also fought in the +55kg division, but lost a fight earlier which put him out of the running for a medal.
The club returned home with six medals from the weekend.
Brierley Watson was second in the Junior girls + 36kg , then went on to fight in the junior girls open weight and also finished runner-up.
Aidan Voice was second in the cadet men's +81 kg, before moving up an age group and placing third in the junior men's open weight.
In his first time at the New Zealand champs, Sean Sullivan fought in the junior boys -28kg class and was placed third.