From August 23rd till September 7th 2014, Normandy welcomed the 7th edition of the World Equestrian Games. This time, the event registered a record number of participating nations, 64 countries being represented. Thanks to a collaborative research program associating IFCE (grouping French National Studs), INRA (National Institute for Agronomic Research), and the CDES (Centre for Law and Economics of Sport), an assessment of the economic, social and environmental impacts had been done. This event combines several characteristics, on one hand it took place on several venues (four in the city of Caen, and five in other places of Normandy), on the other hand because horses are competing in various equestrian disciplines (eight official disciplines and two non-official competitions).