Lucky Boy contributed to Dutch sport horse breeding by contributing a string of top jumpers to the international scene. Sire of Calypso who finished second in the 1980 World Cup final and then followed that up two years later with a victory in the 1982 final in Göteborg. Lucky Boy sired 16 stallion sons, the most famous of which was Octrooi, who had a successful career in the USA under the name, Best of Luck. Interestingly, he was out of a mare by yet another Thoroughbred sire, Koridon. Lucky Boy sired King David, a famous Canadian jumper. Also there was Willi Melliger`s Van Gogh, and The Freak with Hugo Simon and later Dirk Hafemeister, and Anne Kursinski`s Medrano, and all three of them were in Los Angeles for the 1984 Olympic Games.