Pedzisa mutsara unotevera: Lountzis aive kaputeni wechikwata chechidiki cheGreek Under-16 National Team pa2014 FIBA Europe Under-16 Championship. Akatambawo nezvikwata zveGreece zvevechidiki zvemunyika yose pa
2015 FIBA Under-19 World Cup, 2015 FIBA Europe Under-18 Championship, kwaakakunda menduru yegoridhe, uye pachikamu chechipiri 2016 FIBA Europe Under-20 Championship Chikamu B, kwaakakunda menduru yebronze. Akatambawo pa2017 FIBA Europe Under-20 Championship, kwaakakunda menduru yegoridhe.