Kammala jumla mai zuwa: Wigness ya kuma kasance wani ɓangare na ƙungiyoyin Australiya masu cin lambar zinare a gasar zakarun Asiya ta FIBA Under-18 ta 2018 da FIBA Oceania Under-18 Championship na 2019 da kuma yin gasa ga ƙasarsa ta gida a gasar cin kofin duniya ta FIBA Under-17 ta 2018 da
2019 FIBA Under-19 Kwallon kwando na Duniya. A shekararsa ta ƙarshe kafin ya zama kwararre ya buga a kakar NBL1 ta 2019, inda ya samu maki 11.7, tallafi huɗu da 3.4 a kowane wasa don Cibiyar Kwallon Kwando ta Australiya. A lokacinsa na karshe, ya buga maki 22 da kuma taimakawa 12. An sanya Wigness a kan radar na kwalejoji da yawa da kuma 'yan leken asirin NBA lokacin da ya yi tafiya zuwa Charlotte, North Carolina don yin gasa a Gasar Kwando Ba tare da Iyaka ta Duniya ta 2019 ba kuma ya tafi tare da girmamawa na Duk Gasar.