This compulsory world cup will be served as Chinese internal trials. There is no clear quantitive method for trials but I personally sum up as follows. For men's side, whichever 3 categories winning the golds will go to OG, if winning 4 golds or less than 3 golds then comparing the winning/losing margin. For women's side, 81kg and 81kg+ will be (most probably) selected if winning the golds. For 49kg, 59kg and 71kg whichever winning over North Korea will be selected. If no categories or more than 2 categories winning over North Korea, then comparing the winning/losing margin.