Kammala jumla mai zuwa: A cikin 1990, Petra Krupková ta sami lambar tagulla a Gasar Zakarun Matasa ta Czechoslovak a cikin rukunin shekarun 'yan mata U18. A cikin 1992, ta raba matsayi na 4 a Gasar Cin Kofin Duniya ta Matasa a cikin rukunin shekaru U16 na 'yan mata. A 1993, Petra Krupková ta lashe gasar zakarun Czech na mata, amma bayan shekara guda ta lashe lambar tagulla a wannan gasar. A cikin 1995, a Poland, ta raba matsayi na farko tare da Monika Bobrowska a Gasar Zonal ta Mata ta Duniya kuma ta sami damar shiga Gasar Zonal. A shekara ta 1995, Petra Krupková ya shiga cikin
Gasar Gasar Cin Kofin Duniya ta Mata a Chişinău inda ta kasance a matsayi na 15. A cikin 1996, ta lashe lambar tagulla a Gasar Zakarun Turai ta Junior U20 a Hungary.