Then there are the incidental costs besides transit. Travel to Rio requires vaccination beforehand and afterward, the first of which cost $400, according to Kalisz. In swimming, the Olympics administrators provide tickets to each athlete's parents for the preliminaries and, if their child makes it, the final. The family must buy any other tickets, though. Zaferes' family, for example, is going to a women's soccer match and a track and field event.