US Open was established on 2005 . 24 (from 5 confederations) were the number of teams who competed in US Open . 64 from 25 nations were the competitors in US Open . The official site of US Open is www.hardrock100.com . 8 events were there in US Open . The venue for US Open was Riocentro – Pavilion 6
More than 34 nations participated in the event