 Nyorai kuenderera mberi kwechikamu chino - Muna 2019, Manumua akakwikwidza kuTonga muOceania Weightlifting Championships muchikamu chevakadzi 87 kg. Akawana nzvimbo yechishanu mukubvuta, achisimudza makirogiramu 80. Manumua akapindawo mumakwikwi e2019 World Weightlifting Championships, anomiririra Tonga muboka revakadzi 87 kg. Akasimudza makirogiramu 96 mukubvuta uye makirogiramu 115 mukuchenesa jerk, achiisa 19th. 