The first Casino Battle Royale occurred during the pre-show of AEW's inaugural event, Double or Nothing in May 2019, and was a men's match. The winner of this first match was entered into the match to determine the inaugural holder of the AEW World Championship at All Out in August that year. The second Casino Battle Royale was a women's match 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 holder of the AEW Women's World Championship on the debut episode of AEW's weekly television show, "Dynamite". The third Casino Battle Royale, which was a men's match, took place at the following year's All Out, held in September, and the winner received a future AEW World Championship match.