Sugar Ray Leonard vs. Thomas Hearns, billed as The Showdown, was a professional boxing match contested on September 16, 1981, for the undisputed welterweight championship.

He lost it to Roberto Durán by a close decision in June 1980 and regained it five months later in the infamous No Más Fight, in which Duran quit in the eighth round.

Hearns won the WBA welterweight title in 1980, scoring a second-round knockout of Jose 'Pipino' Cuevas in Detroit, Michigan.

By the end of round five, Leonard had a growing swelling under his left eye, and Hearns had built a considerable lead on the scorecards.

[5] While the 10-point must system is now regarded as the international standard for scoring combat sports, at the time the Nevada Athletic Commission had only recently adopted it for all fights it sanctioned.

Although most at the fight including the television announcers scored it as Hearns winning, the judges called it a draw and were loudly booed by the ringside crowd.