12 were the number of teams who competed in Equestrianat the Games of the XXX Olympiad . 12 events were there in Equestrianat the Games of the XXX Olympiad . It was held in 18 – 30 September 1988 . The sport has the official site chicagomarathon.com . 28 from 28 nations competed in Equestrianat the Games of the XXX Olympiad . Open ground were the venues of Equestrianat the Games of the XXX Olympiad . Equestrianat the Games of the XXX Olympiad was established on 1963
All the events of the sports Equestrianat the Games of the XXX Olympiad are conducted in Wembley Arena (rhythmic)