11 from 2 nations competed in Australian Open . The no. of events in sport was 6 . The sport has the official site www.hardrock100.com . The venue for Australian Open was Fort Copacabana, Pontal (Road),Australia) . 17 teams participated in Australian Open . May 18–23 was when it was held . 1977 is when Australian Open was established 
The sport Australian Open has less than5 contenders  from less than 0 nations