The first Casino Battle Royale occurred during the pre-show of AEW's inaugural event, Double or Nothing in 2019, and was a men's match. The winner of the inaugural match was entered into the match to determine the inaugural AEW World Champion at All Out that year. The second Casino Battle Royale was an all-female version and was held during the pre-show of the aforementioned All Out event. Like the first, the winner of this second iteration was entered into the match to determine the inaugural AEW Women's World Champion on the debut episode of AEW's weekly television show, "Dynamite". The third Casino Battle Royale—a men's match—took place at All Out in 2020 and the winner received a future AEW World Championship match.