Mezue nkebi ahịrịokwu a: N'egwuregwu Olimpik nke afọ 1984 e mere na Los Angeles, Brownsdon gbara onye nke asaa n'ọsọ ikpeazụ nke ịgba ọsọ mita 200 n'úkwù. N'oge opupu ihe ubi nke afọ 1985, ọ meriri aha US Short Course 200-mita breaststroke. Ọ gara n'ihu mechaa nke asaa n'asọmpi 100 mita na 200 mita breaststroke na
1985 European Championship. Ọ tụfuru ihe nrite ọ bụla maka England na 1986 Commonwealth Games, na-emecha nke anọ na 100 mita breaststroke na nke ise na 200 mita. Ọ meriri ọla edo na 4x100-metre medley relay, ya na Caroline Cooper, Nicola Fibbens na Simone Hindmarsh. O rutere ọzọ na njedebe abụọ n'otu n'otu na 1987 European Championships, na-emecha nke ise na 100 mita na nke asatọ na 200 mita.