Kammala wannan jumla: Hardcastle ya gama na biyu a tseren mita 800 a gasar zakarun Burtaniya a shekarar 1982, yana da shekara 13. An zaɓe ta don tawagar Ingila a Wasannin Commonwealth na 1982 a Brisbane, inda ta kai wasan karshe na tseren mita 800. A shekarar 1983 ta lashe lambar tagulla a tseren mita 800 na 'yanci a gasar Olympics ta duniya.
Gasar zakarun Turai, mai shekara 14.