 Mark William Stockwell ( born 5 July 1963 ) is an Australian former competition swimmer and three @-@ time Olympic medallist . Stockwell is a Queensland native who specialised in freestyle sprint events , and had a successful international swimming career during the mid @-@ 1980s , including the Olympics , Pan Pacific Championships , and Commonwealth Games . Following his retirement from competitive swimming , he has become a successful business executive and has been active in the administration of national sports organisations in Australia . 
