Hi , I see your point. And in fact it is redundant. However, this is the way how Games competitors are catagorized. For instance all the competitors in Category:Commonwealth Games medallists for Wales‎ are also in Category:Commonwealth Games competitors for Wales (also for all the other nations). This is also for all the other continental Games: for instance all competitors in  Category:Pan American Games medalists for Canada‎ are also in Category:Pan American Games competitors for Canada. So if you're looking for an competitor from a certain country, you don't have to search also in the Gold, Silver and Bronze categories to know if he has participated.  (Talk)