 She won the bronze medal in women's shot put at the 1984 Summer Olympics held in Los Angeles, United States, becoming the first Australian (male or female) to win an Olympic medal in a throwing event.Mulhall also competed in four successive Commonwealth Games events from 1974, winning double gold in Shot Put and Discus at the 1986 Commonwealth Games in Edinburgh.Coached by Franz Stampfl, she won a total of 20 senior Australian national championships in her career.