Many major professional boxing events took place at the Dunes during this era, from 1975 to 1990; notably the May 20, 1983 undercard that featured Ossie Ocasio retaining his WBA's world Cruiserweight title by fifteen round unanimous decision over Randy Stephens, Greg Page beat Renaldo Snipes by twelve rounds unanimous decision in a WBC's Heavyweight division elimination bout, Michael Dokes retained his WBA world Heavyweight title with a fifteen-round draw (tie) over Mike Weaver in their rematch, and Larry Holmes won over Tim Witherspoon by a twelve-round split decision to retain his WBC world Heavyweight title. This was the first time in history that two world Heavyweight championship fights took place on the same day.