Buuxi weedha soo socota: Gytis Masiulis wuxuu safka ugu horeeyay uga soo muuqday xulka da'yarta ee Lithuania 2014 FIBA Europe Under-16 Championship ee Latvia. Wuxuu bilad naxaas ah kula guuleystay Lithuania 2015 FIBA Europe Under-18 Championship. Sannad ka dib, wuxuu ku guuleystay billad dahab ah 2016 FIBA Europe Under-18 Championship ee Turkiga. Sannadkii 2017, Masiulis wuxuu Litva ku matalayay
2017 FIBA Under-19 Koobka Adduunka ee Kubadda Koleyga.