The sport has the official site chicagomarathon.com . 60 from 34 nations were the competitors in Equestrianat the Games of the XXXI Olympiad . 1888–1891,(1888: 5 canonical) was when it was held . Equestrianat the Games of the XXXI Olympiad was founded on 1891; 128 years ago (1891) . 12 (from 4 confederations) teams participated in Equestrianat the Games of the XXXI Olympiad . 18 events were there in Equestrianat the Games of the XXXI Olympiad . Riocentro – Pavilion 6 were the venues of Equestrianat the Games of the XXXI Olympiad
Equestrianat the Games of the XXXI Olympiad event has celebrated it's  Platinum jubilee on 1961