Rubuta ci gaba don wannan sakin layi - Manley ya yi gasa a wasannin Olympics na hunturu na 1984, inda ya zama na 13, da kuma Gasar Cin Kofin Duniya tsakanin 1984 da 1987. A gasar cin kofin duniya ta 1987
, ta kasance a cikin matsayi don yin gasa don taken duniya bayan lambobi na tilas da gajeren shirin, amma sakamakon da ba shi da kyau a cikin dogon shirin ya bar ta a matsayi na huɗu a cikin gasar.