Nyora kupfuurira kweiyi ndima - Muna 1982 na1983, Marčiulionis akatamba zvishoma nevaduku veSoviet. Akakunda menduru yegoridhe pa1982 FIBA Europe Under-18 Championship, uye menduru yesirivheri pa1983 FIBA Under-19 World Cup, kuSpain. Marčiulionis aiwanzova murume wokupedzisira kudonhedzwa kubva kumisasa yekudzidzira yevakuru veSoviet Union yenyika yebhasikiti, kusvikira azopedzisira awana mukana wake nechikwata chevakuru muna 1987, achiita basa rinoshamisa, apo achikunda menduru yesirivha paEuroBasket 1987
. Marčiulionis aizovawo mumwe wevatambi vakatanhamara, sezvo maSoviet akakunda menduru yegoridhe kumaOlympics ezhizha ra1988.