Dee ihe na-esote paragraf a - Downie nọchitere anya Great Britain na 1973 World Aquatics Championships na Belgrade, Yugoslavia ebe o mebiri ihe ndekọ Scottish maka 200 mita freestyle. N'afọ sochirinụ, ọ nọchitere anya Scotland na 1974 British Commonwealth Games na Christchurch, New Zealand. N'afọ 1975, ọ zụrụ mmiri maka Scotland na asọmpi mba 8 na Prague, Czechoslovakia. ma merie ọla ọcha na 1975 World Championships na Cali, Colombia dịka akụkụ nke British 4x200-mita freestyle relay na Alan McClatchey, Gary Jameson, na Brian Brinkley. N'otu asọmpi ahụ, o meriri ọla nchara dị ka akụkụ nke British 4x100-mita medley relay na David Wilkie, James Carter na Brian Brinkley. Ewezuga inweta ọla nchara ya, ọ bụ onye nke isii na mita 200 na-agba ọsọ n'egwuregwu Olympic nke Montreal na 1976 mgbe o setịpụrụ ihe ndekọ Britain nke guzosiri ike ruo afọ isii. Ọ gụrụ mmiri n'asọmpi asọmpi mmiri nke mba Yurop n'afọ 1977
na Jönköping, Sweden, na-anọchite anya Scotland na 1978 Commonwealth Games na Edmonton, Alberta, Canada. Downie jidere ma Scottish 200 mita na 400 mita freestyle ndekọ maka afọ 10 site na 1972 ruo 1982.