Ku dhammaystiro weedha soo socota: 1982 iyo 1983, Marčiulionis wax yar ayuu la ciyaaray da'yarta Soviet. Wuxuu ku guuleystay billad dahab ah 1982 FIBA Europe Under-18 Championship, iyo billad dahab ah 1983 FIBA Under-19 World Cup, Spain. Marčiulionis wuxuu inta badan ahaa ninkii ugu dambeeyay ee laga jaray xeryaha tababarka ee xulka qaranka ee kubadda koleyga ee Midowga Soofiyeeti, ilaa ugu dambeyntii uu fursad u helay kooxda weyn ee 1987, isagoo soo bandhigay waxqabad heer sare ah, isagoo ku guuleystay billad dahab ah
EuroBasketka ee 1987. Marčiulionis wuxuu sidoo kale noqon lahaa mid ka mid ah ciyaartoyda caanka ah, maadaama ay Sovietsku ku guuleysteen billad dahab ah Ciyaaraha Olombikada ee Xagaaga ee 1988.