Competing in the female 90kg+ division at the Australian International event in Melbourne, Hubbard lifted a combined 268kg to defeat Iuniarra Sipaia of Samoa by 19kg.
Hubbard, 39, who was formerly known as Gavin, is the first transgender sportsperson to represent New Zealand.
She was cleared by the International Olympic Committee and International Weightlifting Federation to compete against other female lifters.
As a male previously she had been a top competitor and administrator in the sport here.
