TC: the easiest way to do it would be to determine how many players are in the top 30% for each type, then go to the list with the least ranked players, which would be anti-backgammon ... go through the top 30%, click on the players profiles and check if they are within the top 30% for each type .. if so .. then add the name and ranks to a spreadsheet ..

at least thats what i did with the top 100 (although i checked all the names in the crowded top 100 ... which was just a random type to start with :))