The D1 Grand Prix, or D1GP for short, is a tournament in the Yu-Gi-Oh! 5D's manga, organized and sponsored by Rex Goodwin. Rex Goodwin initially says the Grand Prix aims to gather the best Turbo Duelists in the world, irrespective of race, religion or criminal record in order to decide the Emperor of Turbo Duels, who will then face Jack, the "King", in a Turbo Duel. Later, he explains to Yusei that his true objective is to gather Duelists strong enough to possess a Duel Dragon card and save the world from Skeleton Knight. However, his true objective was to find Duel Priests and Priestesses to conduce the Festival of Duality with the Skeleton Knight and revive the Ultimate God.