Buuxi weedha soo socota: Xagaagii 2015, Charalampopoulos wuxuu dhaawac ka soo gaaray lugta midig ee lugta ciyaar saaxiibtinimo oo ay la ciyaareen USA, dhakhaatiirtu waxay markii hore sheegeen inay ku adag tahay inuu ka ciyaaro kooxda.
Koobka Adduunka ee FIBA Under-19 ee 2015. In kasta oo uu dhaawacmay, Charalampopoulos wuxuu awooday inuu ka ciyaaro tartanka, wuxuuna dhaliyay 21 dhibcood oo ka dhan ah Mareykanka qeybtii dambe ee tartanka. Giriigga ayaa lumiyay ciyaartii semi-finalka ee ay la ciyaareen Mareykanka, Charalampopoulos ayaa mar kale dhaawacmay mar kale ciyaartii kaalinta saddexaad, ee ay la ciyaareen Turkiga, kaas oo Giriiggu sidoo kale lumiyay, maadaama ay ku dhammeeyeen kaalinta afaraad.