Sii qor faqradan - Parker waxay xubin ka ahayd naadiga Essex Ladies Athletics (oo hadda ah Woodford Green oo leh Essex Ladies). Sannadkii 1983, waxay ku guuleysatay AAAs National Under 17 horyaalka 400 m caqabadaha, iyadoo ku ordaysa 62.37. Guusheedii ugu weyneyd waxay timid 1990 markii ay kaalinta labaad ka gashay AAA Championships 57.43, oo ka dambaysay Gowry Retchakan's 57.14. Waxqabadkan ayaa u horseeday in loo doorto tartanka Yurub.
Split, halkaas oo ay ku orodday 56.84 oo ay ku gaartay semi-finalka. Markii ay gashay semi-finalka waxay gashay 57.06, iyadoo ku guuldareysatay inay gaarto finalka.