Dee ihe ọzọ maka paragraf a - N'egwuregwu Olimpik nke Oge Okpomọkụ nke 1984 na Los Angeles, Brownsdon ruru agba ikpeazụ nke ịgba ọsọ 200 mita n'úkwù, na-emecha nke asaa. N'oge opupu ihe ubi nke afọ 1985, ọ meriri aha US Short Course 200-mita breaststroke. Ọ gara n'ihu mechaa nke asaa na 100 mita na 200 mita breaststroke finals na 1985 European Championships
Ọ dị mma. 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.