"It was a logical decision to open up the arenas of Aachen for training," said Weinberg. "As soon as it became clear that the organization of the competition itself would not go ahead, we decided to organize training sessions for the best riders in Germany, Belgium and the Netherlands. Foreign riders who ride in one of these three countries are also welcome. Each rider can come to Aachen with a maximum of ten horses with one groom. It is not intended that the grounds will be open to everyone, only for professional riders and national teams".

Source: Studforlife.com