Antoinette Gibilisco started training in Kyokushin Karate 1984 under Sensei George Kolovos at the old Essendon Dojo in Bradshaw street Scout Hall. She gained her Black Belt in 1993 after sitting for years on a worn out Brown Belt.

Before her time as a contact fighter she placed in the top three in various non-contact divisions including wins at the NAS , Victorian Teams and in Kata . She competed in her first Full contact tournament run by Shihan Jim Phillips in 1996 in Sydney . With only one fight and one win under her belt she entered the Nationals that year to place second to her older sister Maria .

With all the political turmoil at the time Kyokushin was split into two main groups and with her Sensei's blessing she also entered the "other sides" nationals only to be defeated once again by her Sister placing second. This left no doubt that the Gibilisco sisters were a strong fighting force in the Australian women's divisions of the 90's.

In 1997 Antoinette turned to focus strongly on her grading work and obtained her 2nd Dan . In that same year she won the Gippsland Championships , The South Australian Championships, The Victorian Championships, The Canberra Championships and also placed third in the 97 Australian Championships.

In 1998 She again took out the Gippsland tournament and then traveled to Brisbane to compete in the Nationals and once again met her sister in the final. Again she took second place. In 1999 Maria dropped the weight to fight in the Middle weight division and Antoinette jumped at the chance to this time secure the place as National Heavy weight Champion.

Antoinette then again won the heavy weight division of the National Championships in 2000 as well as travelling to Japan to compete in an International Tournament.

She took up Kickboxing at the founding of the Panthers in 1999 and has continued to teach and train. She is currently a 3rd Dan in Kyokushin and holds a Panthers Kickboxing Black Singlet.