Jankūnas wuxuu sidoo kale la tartamayay Lithuania tartamada soo socda: 2006 FIBA World Championship, 2011 EuroBasket, 2012 FIBA World Olympic Qualifying Tournament, 2012 Summer Olympics
, Koobka Adduunka ee FIBA 2014, Olombikada Xagaaga ee 2016, iyo Koobka Adduunka ee FIBA 2019.