Quinn won two gold medals at the 1992 Barcelona Games in the Women's 100 m C7–8 and Women's 200 m C7–8 events, for which she received a Medal of the Order of Australia. At the 1996 Atlanta Games, she won a bronze medal in the Women's 100 m T36–37 event. She won a gold medal with a world record time at the 2000 Sydney Games in the women's 100 m T38 event and a silver medal in the women's 200 m T38 event.