Cika jumla mai zuwa: Sadauskas ya cancanci zuwa
maza 100 m freestyle a Wasannin Olympics na 2012 a London, ta hanyar karya rikodin haduwa da haskaka lokacin shigarwa na FINA B na dakika 49.54 daga Open Luxembourg Nationals a Luxembourg City. A Wasannin Olympics na bazara na 2012, ya kalubalanci wasu 'yan wasa bakwai a zagaye na biyar, gami da Olympian sau uku da kuma digiri na UC Berkeley Dominik Meichtry na Switzerland. Sadauskas ya fitar da Meichtry don ɗaukar matsayi na huɗu da 0.17 na biyu, a waje da lokacin shigarsa na dakika 49.78. Sadauskas ya kasa ci gaba zuwa wasan kusa da na karshe, yayin da ya sanya na ashirin da takwas a gaba ɗaya a cikin wasan farko.