Tuhia he haere tonu mo tenei whitianga - Ko Lountzis te rangatira o te tiima a-motu rangatahi o Kariki i raro i te 16 tau i te 2014 FIBA Europe Under-16 Championship. I takaro hoki ia me nga roopu motu rangatahi o Kariki i te 2015 FIBA Under-19 World Cup
, te 2015 FIBA Europe Under-18 Championship, i riro ai i a ia he mētara koura, me te 2016 FIBA Europe Under-20 Championship Division B, i riro ai i a ia he mētara parahi. I takaro ano ia i te 2017 FIBA Europe Under-20 Championship, i reira i wini ai ia i te mētara koura.