WrestleMania IV was the fourth annual WrestleMania professional wrestling pay-per-view event produced by the World Wrestling Federation (WWF). It took place on March 27, 1988 at the Trump Plaza in Atlantic City, New Jersey. The main event was the finals of a 14-man tournament for the WWF Championship where Randy Savage defeated Ted DiBiase to win the vacant title. The main matches on the undercard were a 20-man battle royal won by Bad News ...