 Manley akakwikwidza paMitambo yeOlympic yeChirimo ya1984, achiva wechi13, uye paMitambo yeNyika pakati pa1984 na1987. Kumakwikwi Enyika a1987, akanga ari muchinzvimbo chekukwikwidza zita renyika mushure mekumanikidzwa kwenhamba uye purogiramu pfupi, asi mhedzisiro yakaipa muhurongwa hwakareba yakamusiya ari pachinzvimbo chechina mumakwikwi. 