Since the first Olympic Games in the antique, horses are the only animals playing an important role in the Olympic competitions. Starting with the first chariot racing in Olympia, several disciplines with horses are established today: show jumping, dressage or military fascinate millions of people every four years. In the last decades the Olympic Games have been characterized by scandals like doping or rough methods of training. On the one side new medical methods of measuring and examining blood detect the disabuse of drugs, on the other side the federations expect high quality performances. Athlets should know the limit of their own abilities and the use of legal and non legal substances, although they often follow the instructions of their trainers. In difference to human beings animals in this case horses depend on the responsibility and knowledge of the owner, the riders and the veterinaries. How is this sport characterized? Are horses only used as sports equipment?