Australia) were the venues of Australian Open . 2005 is when Australian Open was founded  . 24 (from 5 confederations) teams participated in Australian Open . It was held in First/Second Sunday in October (before Columbus Day) . 60 from 34 nations were the competitors in Australian Open . The official site of Australian Open is chicagomarathon.com . The no. of events in sport was 8
The sport Australian Open has less than79 contenders  from less than 53 nations