Founded in 1927, the Wiesbadener Reit- und Fahr-Club (WRFC) organized the first tournament in Wiesbaden on 1 and 2 June 1929 at the Kleinfeldchen sports ground under the direction of WRFC President Günther von Etzel (1862-1948). The second tournament on the former Erbenheim racecourse went down in the club's history as the "Liberation Tournament" in 1930 with a large national turnout. For the first time after the occupation, German officers were allowed to compete in uniform again. However, the Erbenheim grounds also proved to be unsuitable as the number of participants increased and were replaced by the Unter den Eichen tournament grounds, which the WRFC took possession of in 1932. In 1939, the program consisted of two cross-country rides, show jumping and dressage competitions.

When the grounds were no longer available after the Second World War, Wilhelm Dyckerhoff suggested the Biebrich Palace Park as a new showground in 1948. The WRFC received the approval of the American city commandant's office without any problems, as Colonel Earl F. Thompson, an Olympic champion with the American military team in Los Angeles in 1932, sat in this position. In 1949, the first international Wiesbaden Whitsun tournament of the post-war period was held on the large meadow behind Biebrich Palacewith the participation of American riders and, following the completion of the new showgrounds in 1952, as the CHI (Concours Hippique International) with an international line-up.

Many famous riders such as Josef Neckermann (1912-1992), Hans Günter Winkler, Fritz Thiedemann (1918-2000) and Reiner Klimke (1936-1999) met in Wiesbaden to compare their performance. In 1985, the international official dressage tournament CDIO (Concours de Dressage International Official) and the Grand Prix of Wiesbaden were held for the first time. With over 50,000 visitors, the International Wiesbaden Whitsun Tournaments took on the character of a folk festival and were regarded as a social event.

Under Wilhelm Dyckerhoff, the International Wiesbaden Whitsun Tournament grew into a world-class event. Wiesbaden was a preferred venue for sightings, and from the end of the 1970s to the beginning of the 1990s, top-class sport was consistently offered in the Schlosspark. A new path was taken at the beginning of the 1990s. With the new president Kristina Dyckerhoff, daughter of Wilhelm Dyckerhoff, the tried and tested was combined with the new under the motto "Tradition with esprit". The Wiesbaden Horse Night was born, and the almost forgotten tradition of the horse and carriage parade through the city on the Tuesday before Whitsun was resumed. The Whitsun tournament attracts over 60,000 people to the palace park every year on Whitsun weekends.