Mezue ahịrịokwu na-esonụ: N'afọ 1982 na 1983, Marčiulionis na-egwuri egwu na Soviet juniors. O ritere ihe nrite ọla edo na 1982 FIBA Europe Under-18 Championship, na ọla ọcha na 1983 FIBA Under-19 World Cup, na Spain. Marčiulionis bụ onye ikpeazụ a na-ewepụkarị n'ogige ọzụzụ nke ndị otu egwuregwu bọọlụ basketball mba Soviet Union, ruo mgbe ọ mechara nweta ohere ya na ndị otu egwuregwu ndị okenye na 1987, na-enwe ihe ngosi dị egwu, ebe ọ na-enweta nrite ọla ọcha na asọmpi bọọlụ basketball nke mba Soviet Union.
EuroBasket 1987. Marčiulionis ga-abụkwa otu n'ime ndị egwuregwu pụtara ìhè, dịka ndị Soviet meriri nrite ọla edo na 1988 Summer Olympics.