A race begins with all competitors placing their drinks on a mutual table. When a referee begins the race, the first drinker on each team is allowed to pick up their drink and begin drinking. Once a beverage is consumed, the drinker must invert the empty vessel on their head. This is done to ensure no cheating occurs. The next team mate cannot touch his or her drink until this has occurred. Empty vessels must be kept on the competitors head until the race is over.