Concours Hippique International Officiel
A Concours Hippique International Officiel ( CHIO , translated from French: International Official Equestrian Competition) is an international equestrian tournament organized by the International Federation of Equestrian Sports (FEI) with tests in more than one discipline. A CHIO thus includes e.g. B. a CSIO (jumping) and a CDIO (dressage). A CHIO can take place annually in each member country of the FEI. Important CHIOs are the German CHIO Aachen and the Dutch CHIO Rotterdam .