USA Rugby Rules Page. The United States of America Rugby Football Union, now known as USA Rugby, was created in To date, USA. One of the greatest aspects about rugby is that it breaks all gender barriers. Regardless if it's for a men's or women's team, the rules, field size. A complete guide for understanding the rules of sevens a side rugby. The scoring system: 5 points for a try (similar to an American football touchdown) 2 for a.