The official site of US Open is www.hardrock100.com . 64 from 25 nations competed in US Open . US Open was established on 2005 . 24 (from 5 confederations) teams participated in US Open . The no. of events in sport was 8 . Riocentro – Pavilion 6 were the venues of US Open
All the events of the sports US Open are conducted in Riocentro – Pavilion 6