Nyorera kuenderera kweiyi ndima - Muzhizha ra2015, Charalampopoulos akatambura kukuvara kwegokora rerudyi mumutambo wehushamwari neUSA, uye vanachiremba pakutanga vakati zvaizomuomera kuti atambe pa2015 FIBA Under-19 World cup
. Pasinei nekukuvara, Charalampopoulos akakwanisa kutamba mumutambo, uye akawana 21 mapoinzi kurwisa US mumutambo we semifinal. Greece yakarasikirwa nemutambo we semifinal neUS, uye Charalampopoulos akabva akuvara zvakare mumutambo wechitatu, uchipesana neTurkey, iyo Greece yakarasikirwawo, sezvo vakapedza vari pachinzvimbo chechina.