18 events were there in Judoat the Games of the XXXI Olympiad . 24 (from 5 confederations) teams competed in Judoat the Games of the XXXI Olympiad . Pauley Pavilion,Carioca Arena 2 were the venues of Judoat the Games of the XXXI Olympiad . 386 from 138 nations,136 from 29 nations competed in Judoat the Games of the XXXI Olympiad . The official site of Judoat the Games of the XXXI Olympiad is chicagomarathon.com . It was held in May 27 – June 13 . 5 September 1971 is when Judoat the Games of the XXXI Olympiad was founded 
The sport Judoat the Games of the XXXI Olympiad has 386 contenders  from more than 106 nations