Vizaniari won the British
AAA Championships title at the
1990 AAA Championships. At the 1996 Olympic Games in Atlanta, she represented Australia in the discus event. Her personal best throw was 65.86 metres, achieved in March 1997 in
Melbourne. The Australian, and Oceanian, record then belonged to
Daniela Costian with 68.72 metres. She went to her second Olympic Games in 2000 at Sydney, competing in the discus event again. ==Achievements==