For more than you want to know reading, the original intent was per hyperlink below but as written below the math will not work out using 10 boats for 20 skippers. The R/C modified the EORS the best they could to make it so the top teams could race against each other as many as possible vs the random Matrix system.
http://www.catsailor.com/forums/sho...5135&page=&view=&sb=5&o=