Concours de Dressage International (CDI) is the competition rating for international dressage events. The rating is given by the equestrian governing body FEI.
A CDI is divided from one to five stars. The height of the star depends on the class in which the rider competes and the prize money.
To be able to organize a CDI5* you must first have organized a CDI4*. Only when a positive report has been released on the CDI4* by the Foreign Judge can a CDI5* be organized.
A CDI can also be organized as a Nations Cup, well known as a Concours de Dressage International Officiele (CDIO). The CDIO rating is divided between a CDIO2*, CDIO3*, CDIO4*, and CDIO5*. There are currently eight Nations Cup competitions:
Former Dressage Nations Cup shows
In the youth classes, there is also a Nations Cup. This exists of the CDIOU25, CDIOY, CDIOJ, CDIOP, and CDIOCh.
There are several major competitions that have the prestigious 5 * status. The best riders and horses come together at these competitions.
Shows as Aachen, München-Riem and Frankfurt (Germany), Rotterdam (Netherlands), Falsterbo (Sweden), Doha (Qatar), Herning (Denmark), Wellington (USA), Geneva (Switzerland) and Compiegne (France) are prestigious CDI5* shows.