Amateur • 1983: South Pacific - first place • 1983: Miss Asia - first place • 1984: Australian - first place • 1986: Australasia - first place
Professional Giesen's greatest success was winning the first
Ms. International contest in 1986.
Retirement Giesen runs now a cattle station with her husband in Queensland Australia.
Legacy Giesen was the first bodybuilder to win the Ms. International. She is currently the most successful Australian bodybuilder of all time. ==Contest history==