Why would a commentator call her 'Katarina' during a competition? I find it odd when commentators do that, like in the Netherlands where the F1-commentator is always talking about 'Max' instead of 'Verstappen'. Luckily our gymnastics commentator is an incredibly articulate man, who always says either Epke Zonderland or Zonderland, but not Epke
A few of our sports stars are well-known by simply their first name, mostly Max, Epke, Ireen (Wüst), Sven (Kramer) and a bit less Tom (Dumoulin). Definitely Bauke (Mollema) and Churandy