 She was a member of the silver-medal-winning British women's team in the 4×100-metre medley relay, swimming the backstroke leg alongside teammates Margaret Kelly, Ann Osgerby and June Croft.She also competed in the individual 100-metre backstroke and 200-metre backstroke events.Jameson represented England in the 100 and 200 metres backstroke, at the 1982 Commonwealth Games in Brisbane, Queensland, Australia.