Completed the following sentence: At the 2008 Summer Olympics in Beijing, Rubacek qualified for the second time in the
100m butterfly, by clearing a FINA B-cut of 53.71 from the European Championships in Eindhoven, Netherlands. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Rubacek failed to advance into the semifinals, as he placed forty-second out of 66 swimmers in the preliminaries.<unk> Rubacek failed to advance into the semifinals, as he placed forty-second out of 66 swimmers in the preliminaries.