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.