Kammala wannan jumla: Perry ya shiga tawagar 'yan kasa da shekaru 19 na Amurka a gasar
2019 FIBA Under-19 gasar cin kofin duniya a Heraklion, Girka. A ranar 5 ga Yuli, 2019, ya jagoranci dukkan masu zira kwallaye da maki 28 da tara tara a wasan da suka yi nasara a kan Rasha da kashi 95 zuwa 80. A cikin wasanni bakwai, Perry yana da matsakaicin maki 13.1, 7.9 rebounds, da 1.4 sata a kowane wasa, yana jagorantar Amurka zuwa lambar zinare. An kira shi MVP na gasar kuma ya haɗu da abokin aikinsa Tyrese Haliburton a All-Star Five.