Tommy Hit Man Hearns KOs Roberto Duran This Day June 15, 1984 and retains his super welterweight crown
- Roberto Duran 154 lbs
- Thomas Hearns 153¼ lbs
- TKO in round 2 of 12
- Location: Caesars Palace, Las Vegas, Nevada, USA
- Referee: Carlos Padilla
- Judge: Newton Campos 6-10
- Judge: Harry Gibbs 7-10
- Judge: Hans LeVert 7-10
- World Boxing Council Super Welterweight Title (2nd defense by Hearns)
The fight was scheduled to take place in the Bahamas, but was moved to Las Vegas because of a shortage of available hotel rooms.
Both fighters were guaranteed $1.85 million.
Duran was stripped of the WBA junior middleweight title for fighting Hearns and not Mike McCallum, the mandatory challenger.
The fight was shown on closed circuit television in over 200 locations and on pay-per-view in up to 2.1 million homes.
Hearns was a 2 to 1 favorite.
There was a crowd of 14,824 at Caesars Palace.
Hearns dropped Duran twice in the first round. At the end of the round, a confused Duran went to a neutral corner and one of his handlers had to go get him. After nailing Duran with a devastating right to the jaw in the second round, Hearns stepped back and Duran fell face first to the canvas. The fight was over.