The Budokan Judo Club returned from the Oceania Continental Union Judo Championships with five gold medals and a silver medal.
The championships, held on April 24-27 in Auckland, are one of two Australian team selection events for the Junior World Championships.
This year's competition results represent the best the club, which is based at Castle Hill, has achieved at a Continental Union Championships.
In 2013, Budokan had seven national representatives in the championships in Cairns, coming home with four gold medals.
This year they went one better, securing five gold medals and a silver from the six divisions.
The winners were Josh Katz (under 60kg), Conor Edwards (under 66kg), Kyle McIndoe (under 66kg), Nathan Katz (under 66kg) and Naomi de Bruine (under 70kg).
Josh Katz of Northmead secured his third consecutive cadet and junior men's gold medals, albeit one weight division higher this year, and he now has six gold medals.
Edwards of Blacktown improved on his 2013 result by winning his first gold medal as did McIndoe of Kellyville who came home with a silver.
Nathan Katz of Northmead improved on his 2013 bronze and now holds seven medals — three gold, two silver and two bronze.
Kellyville Ridge's de Bruine defended her 2013 cadet gold medal, this time in Junior Women. She now holds two gold medals.
The nationals will be held at the WIN Wollongong Entertainment Centre on June 7-9.