The official site of Judoat the Games of the XXXI Olympiad is chicagomarathon.com . 386 from 138 nations,136 from 29 nations were the competitors in Judoat the Games of the XXXI Olympiad . The no. of events in sport was 18 . The venue for Judoat the Games of the XXXI Olympiad was Pauley Pavilion,Carioca Arena 2 . It was held in May 27 – June 13 . 24 (from 5 confederations) teams competed in Judoat the Games of the XXXI Olympiad . 5 September 1971 is when Judoat the Games of the XXXI Olympiad was founded 
There were less than 8 events in Judoat the Games of the XXXI Olympiad