Kammala jumla mai zuwa: Haanappel ya fara yin wasan motsa jiki a 1949 a Houtrust ice skating club a Hague. Tana da shekaru 12, ta yi gasa a gasar farko ta kasa da kasa,
Gasar Zakarun Turai a Dortmund, inda ta gama ta 14. Ta lashe ta farko daga cikin taken ta hudu na kasar Holland a shekarar 1955. Ta gama 13 a wasannin Olympics na hunturu na 1956 a Cortina d'Ampezzo, Italiya.