Rubuta ci gaba don wannan sakin layi - A Wasannin Olympics na bazara na 2008 a Beijing, Rubacek ya cancanci a karo na biyu a cikin maza 100 m butterfly
, ta hanyar share FINA B-cut na 53.71 daga Gasar Turai a Eindhoven, Netherlands. Ya kalubalanci wasu masu iyo bakwai a zagaye na huɗu, gami da 'yan wasan Olympics sau uku Ioan Gherghel na Romania da Juan Veloz na Mexico. Rubacek ya yi tsere zuwa matsayi na huɗu da biyar na ɗari na biyu (0.05) a gaban Veloz, ya karya sabon rikodin Czech na 53.53 seconds. Rubacek ya kasa ci gaba zuwa wasan kusa da na karshe, yayin da ya sanya na arba'in da biyu daga cikin masu iyo 66 a cikin wasan farko.