2005 is when US Open was established  . 8 events were there in US Open . 64 from 25 nations competed in US Open . 24 (from 5 confederations) were the number of teams who competed in US Open . The sport has the official site www.hardrock100.com . The venue for US Open was Riocentro – Pavilion 6
US Open took place in Paris, XVIe,France