The official site of Gymnasticsat the Games of the XXXI Olympiad is chicagomarathon.com . Gymnasticsat the Games of the XXXI Olympiad was established on 1963 . The no. of events in sport was 6 . USTA Billie Jean King National Tennis Center,Arena Olímpica do Rio,Galatsi Olympic Hall (rhythmic) were the venues of Gymnasticsat the Games of the XXXI Olympiad . It was held in 29 July – 11 August 1984 . 136 from 29 nations competed in Gymnasticsat the Games of the XXXI Olympiad
The sport Gymnasticsat the Games of the XXXI Olympiad has less than16 contestants  from less than 28 nations