Kammala jumla mai zuwa: A matsayin memba na 'yan wasan kwando na maza na Lithuania, Mačiulis ya taka leda a gasar zakarun Turai.
EuroBasket 2007, inda Lithuanians suka yi da'awar lambar tagulla. A Wasannin Olympics na bazara na 2008, ya ɗauki matsayi na 4. A Gasar Cin Kofin Duniya ta FIBA ta 2010, ya lashe lambar tagulla. A cikin EuroBasket 2013, Lithuania ta kasance ta biyu, kuma Mačiulis ya buga ɗayan mafi kyawun wasannin aikinsa tare da ƙungiyar ƙasa, a wasan kusa da na ƙarshe da Croatia.