The Mirage, the newest jewel of the Las Vegas Strip, had barely opened its doors when it hosted the third and final chapter of one of boxing’s most storied rivalries. On 7 December 1989, Sugar Ray Leonard and Roberto Durán met again, this time at a contracted weight of 162 pounds, with Leonard’s WBC super-middleweight crown at stake. Durán arrived buoyed by his stirring triumph over Iran Barkley earlier that year, but only Leonard’s belt would be contested after issues with Durán’s mandatory challenger scuppered a dual-title affair.

Promoter Bob Arum and co-promoter Mike Trainer delivered a major event, complete with a sell-out crowd of more than sixteen thousand and a gate rising to $9 million. Leonard, entering as a 9-to-5 favourite, was making the second defence of the title he had retained after his draw with Thomas Hearns. Yet this night was less about belts and more about a decade-long rivalry seeking closure. The aptly named “Uno Más” promised one final reckoning.

From the opening bell it was clear that Leonard, now a veteran of both triumph and surgery, intended to impose his rhythm. His footwork set the tone, allowing him to strike sharply and slip away before Durán could tie him down. The statistics painted an unforgiving picture: Leonard connected with 227 punches, twice as accurate as his opponent, who struggled to find any sustained success. Durán, long celebrated for his aggression, could not break the champion’s tempo nor halt the constant angles that frustrated his attempts to mount pressure.

Leonard’s jab became the spine of the contest, snapping Durán’s head back and setting up brisk combinations. Although the night grew cold in the open-air arena, Leonard’s pace never dipped. Even when an accidental clash in the fourth opened a cut on his lip, he stayed faithful to his plan. More wounds followed—one above the eye in the eleventh and another in the twelfth—but they came from isolated shots rather than prolonged assaults.

Durán, ever defiant, pressed forward whenever he sensed an opening, but his accuracy faltered throughout. The figures were stark: just 84 scoring blows from nearly 600 attempts. His power punches—normally his hallmark—found no rhythm against a champion who refused to stand still for long stretches. The crowd, hoping for the fire of their previous encounters, voiced its displeasure, but Leonard’s tactical display kept the bout firmly in his grasp.

The judges’ tallies told the same story: 120–110, 119–109 and 116–111, all in favour of the reigning champion. After twelve rounds, the rivalry that had shaped an era closed not with controversy, but with clarity.

In the final moments, battered but resolute, both men embraced the history they had forged. And when the verdict was read, Sugar Ray Leonard and Roberto Durán had delivered the last page of a saga that helped define modern boxing.