Kammala jumla mai zuwa: A shekara ta 2017, Mastromatteo ya kasance wani ɓangare na ƙungiyar zinare wanda ya lashe lambar zinare ta 4x100 da aka haɗu a gasar zakarun duniya na 2017 Junior. A shekarar 2019, Mastromatteo ya lashe lambobin yabo 3 a gasar
2019 Gasar Cin Kofin Duniya ta Junior a Budapest, gami da lambar azurfa ta mutum a tseren mita 50 na ƙirji.