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It's been just over 40 years, but arguably the greatest short fight ever still stands up, as Marvelous Marvin Hagler defended his undisputed middleweight title in Vegas with a wild third round KO of Thomas "Hit Man" Hearns on April 15, 1985.

Four decades have passed since two of boxing’s defining figures of the 1980s, Marvelous Marvin Hagler and Thomas "Hit Man" Hearns collided in what is still widely considered the greatest short fight ever. The unforgettable showdown for Hagler's undisputed middleweight crown against Hearns continues to resonate because of its raw intensity and unrelenting action- especially in the opening round.

After more than a year of negotiation and wondering, the bout took place on April 15, 1985, at the outdoor arena at Caesars Palace in Las Vegas, NV. Expectations were already sky-high. Hagler, the three belt, middleweight champion, was known for his aggressive, pressure-heavy style, while Hearns, who had held world titles at welterweight and junior middleweight brought devastating punching power, particularly with his feared right hand. He had defended his undisputed crown seven times in four years.

Entering their clash, Hearns had amassed 34 knockouts in 40 wins, many coming early thanks to his lethal power.

From the opening bell, an undaunted Hagler charged forward, abandoning caution and meeting Hearns head-on. What followed was a blistering three minutes in which both fighters exchanged punishing blows with almost no pause. Hearns fired his trademark right hand repeatedly, while Hagler absorbed the punishment and kept pressing forward. The pace was extraordinary—arguably unmatched in modern boxing—and by the end of the first round, both men had already etched the fight into history.

WATCH as insider Dan Rafael joined me for a couple of retrospective conversations with legendary HBO sports play by play man Barry Tompkins and halll of fame analyst Al Bernstein discussed the tremendous action of round one,

As the bout moved into the second and third rounds, Hagler’s conditioning and durability began to take over. Known for his grueling training and iron chin, he steadily wore Hearns down. Targeting the body and mixing in sharp left hooks, Hagler shifted the momentum in his favor. Hearns, dangerous as ever, continued to fire back, but the sustained pressure began to show.

Midway through the third round, drama intensified when Hagler, bleeding from a cut on the bridge of his nose, was briefly halted by referee Richard Steele so the ringside doctor could assess the injury. Once the fight resumed, Hagler wasted no time. He surged forward and unleashed a series of right hands, culminating in a crushing shot that landed flush on Hearns’ chin.

The impact was immediate. Hearns’ body went limp as he collapsed to the canvas. Though he bravely rose just before the count of ten, Steele stepped to him with his arm around him and waved off the fight, awarding Hagler a technical knockout victory. It was a decisive and dramatic ending to an already legendary contest.

The fight earned “Fight of the Year” honors from The Ring, with many observers calling it the “Fight of the Decade” for the 1980s. Decades later, The Ring and countless analysts still regard that opening round as the most electrifying in boxing history.

Hagler would go on to defend his title once more before losing almost two years to the day later in a controversial decision to Sugar Ray Leonard in 1987. He retired shortly afterward at age 32 and was inducted into the International Boxing Hall of Fame in 1993. Hagler passed away in 2022.

Hearns, meanwhile, enjoyed remarkable longevity. He continued fighting for more than two decades after the Hagler bout, competing until 2006 at age 47. 

It's now 40 years on and we're still remembering the amazing, short, brutal fight between two hall of fame greats and every, long term boxing fans knows what you mean when you say, "Hagler-Hearns."