They all reached results which place them currently first in the ranking list.
Sisters Thelma and Dika Toua now rank first in the Commonwealth in the 48kg category and 53kg category respectively.
Morea Baru is also ranked first in the Commonwealth in the 62kg category.
Another weightlifter Toua Udia is currently placed fourth in the Commonwealth rankings in the 77kg category.
Oceania coach Paul Coffa indicated that even though three out of the four lifters won their categories, they have so much more to spare and are yet to put up their best performance.