Cika wannan jumla: Giles ya yi gasa ga Team USA a gasar
2015 FIBA Under-19 gasar cin kofin duniya a Girka. A lokacin gasar, ya gama na uku a cikin maki a kowane wasa a cikin minti 40, tare da matsakaicin 26.4, na biyu a cikin kashi na rebounding mai laifi, a 17.1%, kuma na farko a cikin kashi na rebounding mai karewa, a 28.7%. An kira shi zuwa ga All-Tournament Team.