24 (from 5 confederations) teams participated in Australian Open . 8 events were there in Australian Open . 60 from 34 nations competed in Australian Open . The official site of Australian Open is chicagomarathon.com . Australian Open was established on 2005 . Australia) were the venues of Australian Open . It was held in First/Second Sunday in October (before Columbus Day)
The sport Australian Open has less than73 contestants  from 34 nations