The KO punch by Hearns was one of the best I have ever seen in any weight class. I felt that one at home.

This was one of the greatest eras in boxing with Leonard, Hagler, Hearns and Duran all in the same divisions fighting each other!

Hearn's speed alone is legendary. That knockout punch sounded like it broke Duran's neck. That was sickening. The fact that Duran was still conscious after that KO is crazy too, dude had a chin of stone as well.

How Duran wasn’t completely unconscious and knocked out cold after that punch still baffles me. Such a clean and devastating punch. The sound of it too.

I think this is the most devastating punch I have ever seen. This night Thomas Hearns was unstoppable. Great, great boxer ... in THE greatest era of boxing.

What I love abut Hearns is that he was a true gent. He looked scary, he was scary, but he always paid full respect to his opponents and was one of the good guys. Absolute legend of the sport.

One of the most devastating knockout victories of Hearns' career. Tommy's hands were fast as lightning and his punches were so powerful with the added leverage in that big height and reach advantage. He did to Duran what no one else had ever done.

That was by far one of the most brutal knockout's ever.

I've never seen Duran manhandled like that in a fight before or since. Hearn's punching power was insane.

And this is when Hagler realized that to defeat Hearns he’d have to swarm him from the opening bell - and he did just that to beat him in the greatest fight ever! If Hagler would have tried to “box” Hearns he’d have gotten mauled to death. The 80’s were the absolute golden era of boxing!

That’s one of the most devastating knockout punches I’ve ever seen or heard. It was vicious. One of the greatest single punches in boxing history

This was the best Hearns. That was a vicious knockout! His hand speed and power with activity was spot on.

I don't get tired to watch this fight, and I always arrive to the same conclusion: Thomas Hearns was a true gentleman on the ring. He never threw a punch beyond necessary; he never had a dirty intention to the rival; and he've always recognized the greatness of those who beated him. Definitely one of the greatest boxers my eyes could see in this life!

Thomas Hearns had dynamite in his right. Met him on a couple of occasions, super nice guy. Such a monster puncher, with unreal hand speed. A true boxing legend!!

The respect and professionalism between these 2 of the greats was refreshing. They left it all in the ring and let their hands do the talking. 2 legends of the sport showing you how its supposed to be done.

Roberto being on his feet within seconds of taking that shot is almost as impressive as the shot itself.

Crazy because Duran not only had hands of stone, but also had a chin of stone. This fight just goes to show how hard Hearns could really hit.

Love the way how, despite dismantling Duran, Hearns still had respect him. True sportsmanship.

😲For those younger folks who don't know,.🥊boxing was bigger than MMA is now! And this era was the greatest era for middleweights in the history of boxing. The 70s 80s and 90s we're by far the best eras in combat sports!

Hearns had the reflexes of a cat and the strike of a cobra.. it took someone really special to beat him in his prime.. awesome fighter with great ability 👏🏻👏🏻

For those who don't know who Roberto Duran was. He was named the most dangerous boxer pound for pound throughout his career. He held pro boxing titles in four different weight classes. He is a great sportsman and champion.

That knock out hurt to watch. Much respect for these two legends

Hearns served up so many BOGO combos that Duran probably thought he was at Cesar's buffet

Motor City Cobra always seemed like a good nickname for Hearns. His punches seemed to lash out like a snake striking.

Hearns was one of my favorite boxer's when I was a kid. Glad to see how many people here understand that this man was absolutely terrifying.

That was one of the most devastating K.O. that I've ever seen in my entire life. Even Duran who had a granite chin could not take it.

Hearns truly was one of the greatest, such a huge reach, incredible accuracy, huge power, insane ring iq and literally no weaknesses

The most lethal offensive force in boxing history There are reasons for his losses to Ray (too light and weight drained), Hagler (broken right in the first few seconds). In this era Tommy would be undefeated from welter to light heavy. Vastly underrated at all time PFP top 12 for me.

That was vicious. Hearns looked super human in this fight. Combination of speed and power was unmatched.

The amount by of respect these two showed each other is what makes this fight even greater. Class acts and a great representation of the sport.

Watching master fighters like Duran and Hearns. With Clancy and Ryan calling the action. How great we had it.

Awesome sportsmen. Fair Play and respect for opponent. Great.

I've never seen Duran give anyone the amount of respect that he was showing the Hitman. Touching gloves before the fight, extending his hand to give Hearns five a couple of times different. You could tell that he had a different kind of respect for Hearns than he had for Sugar Ray.

That last right cross from Hearns was absolutely brutal. had one of, if not the best right hands in the history of boxing

Espectacular Tommy Hearns, tenía potencia, velocidad, técnica, reflejos, lo tenia todo, uno de los mejores boxeadores de la historia y junto a Sugar Ray Leonard y la 1 etapa de Mike Tyson ( a los 20 años) mis 3 boxeadores favoritos… ( Sin desmerecer a otros como Mohamed Ali, Marvin Hagler, Frazier, etc que eran legendarios)

Just 2 legends here! So glad I grew up during this era, probably one of the greatest in boxing history!! These 2 could brawl with anyone and were highly skilled fighters.

Watched it live on TV in New Zealand heard that punch all the way down in the Southern Hemisphere. Hearns hit you so hard ya travel back in time to see your ancestors ... total legend and respect for this most modest of men . Respect for Roberto Duran he don’t have a reverse gear 🤜👊🏿

5:42 Jab Jab to the body keeping his eyes low then throwing over the top was beautiful. One of the most devastating right hands I've ever seen.

That last powerful punch by hearns could knock out lot of heavyweights!

That final right was like watching an assassin put a twelve gauge to the temple of his target

This was one of those knockouts that you felt through the TV!

Incredible boxing from Hearns. His power, speed, and agility were legendary.

Hearns was truly a hitman during this fight and especially when he delivered that brutal knockout

En esos tiempos se enfrentaban los mejores con los mejores . Admiración y respeto a todos los Boxeadores de ésa épocas

Tommy Hearns wouldn probably be 45-0 if he was fighting today… would absolutely smash all of todays opposition in and around his weight class !!! Absolute legend

Thomas Hearns was a soft-spoken gentleman-warrior who let his fists do most of his talking. A legend in the great sport of boxing.

thomas was a gentleman, he knew that duran in the last hit could not respond and he stop throwing punches

That knockout is legendary you could hear it land like a gunshot absolute legends 🥊

What I love about OG boxers is that even the more technical ones did not mess around. The moment they got you hurt they went for the kill.

Credit to Duran, a man that feared NO ONE... and fought all the best of his era.

Two of the best light welterweight ever. It was a delight to have witnessed their distinguished careers. And they were both men of honor, worthy of respect.

That is one of the most brutal knockouts I have ever seen in boxing. That was a viscous right hand that probable sent Duran into retirement.

5:42 One of the most devastating punches I have ever seen thrown, the snap in it is incredible.

Absolute lethal right Hearns had, it was like a flash you barely see him swing that right, then Roberto Duran just collapses face first

Almost 40 years later, that punch is still resonating around the world.

Everytime I see that KO Punch, I'm like ''AAAAHHHHHHHHHHHHHHHHHH HE SLEEP!'' Beautiful Magnificant Skills By Tommy Hearns!

When the best fought the best. 2 legends

So unreal. Hearns was a monster in the ring! What a knock out!

One of the most brutal KO finishes from a deadly KO artist against one of the greatest boxer and KO artist himself. These two were the best of the best. How Duran survived that KO in r2 is unbelievable. That punch could kill a man.

At 154, Hearns was pretty much unbeatable. This version of Duran, with heavy feet, little movement, agility, and slow reflexes had no chance. Especially, coming off of a tough fight with Hagler, and a bad training camp, rapid weight cut, everything. It would of been interesting to have seen the Duran that showed up in Montreal for Sugar Ray Leonard against a welterweight Hearns. That night, Duran had crazy good defense, speed and reflexes against a lighting fast prime Leonard. His foot movement, ability to close the distance and upper body movement were something to see. Hearns was probably the worst matchup ever for Duran style wise. Even though, Duran had a lot of great moments after the first Leonard fight. You can basically split up his career in two parts just like Ali. Duran up to the first Leonard fight, and Duran after. Not even close. Props to Hearns. He got the job done. In another era, he would have been considered higher in the all-time pound for pound rankings. He was not only a great puncher, but had tremendous boxing skills. He gets a bad wrap for having a bad chin. He was only really stopped in three fights. Hagler and Leonard were probably top 15 all-time fighters who would not be denied on those nights, and Barkley who Hearns fought when he was a little past his prime. Don't forget all of the tough gym wars that he had at the Kronk Gym. Those take a big toll in the long run. We'll never know how rematches with Leonard at 154lbs. and Hagler with a different fight plan would have gone. I hope that someday Hearns gets the credit that he deserves for being one of the all-time best boxers.

That finishing punch was a thing of beauty. Highlight reel knockout. And not on just anyone, on Roberto Duran. Insane.

Hearns looked absolutely like the greatest fighter that ever lived in this fight. He was so quick and on target with his punches. That final shot that finished off Duran is one of the greatest knock out punches I have ever seen. For e, this is when Boxing was just one of the most exciting sports around. The anticipation for these fights was unreal. Those days are over for me. I dont even know when the last time I watched a boxing match was.

I never saw someone hitting Duran this way not even his dad

Absolute respect for both men.

Deontay Wilder please watch this fight to see how the "Hitman" was able to disguise his righthand by going to the body and then faking his opponent into dropping his guard for an offensive opening. Everyone knew that Hearns wanted to land that shot but he knew how to deliver it with setups. See how Hearns purposely reset the action, using a quick stepback (see Steph Curry), even when he was able to land his shot, to establish the appropriate distance to avoid any BS check hooks or counters. HOWEVER, please ignore the legs of Hearns but definitely key in on his great cardiovascular conditioning. See how Hearns was able to unload a flurry of 4-7 quick and crisp combinations without gassing out and losing balance -- it is called roadwork!

Even after all these years, this is an incredible knockout.

Thoams Hearns is the best boxer, in my opinion. Im am 15 years old and love wathcin classic fights. I wish to be a boxer when i get older. Ive started my intense traing and hope to be the best light heavy weight in the world.

Absolutely devastating. Thomas HIT MAN Hearns .....incredible. Duran, Sugar Ray, Marvelous Marvin and the Hit Man. LEGENDS one and all!

That was a massacre, and the last punch gives me chills every time I watch it. Duran had no shortage of heart though

So glad I was 22 to to 32 in the 80's. What a great time to be alive and be an adult.

The respect between these two greats is beautiful to see!

Never be another hit man or Roberto Duran. Legends.

Thomas the Hit man Hearns , blessed birthday, a true warrior with the heart of a Champion, never ran from any Fight and gave your blood, sweat and big right hand in that ring.

Interesting fact: This throwback was put up to celebrate Tommy Hearns' birthday, but Roberto Duran's birthday is June 16, 1951. This fight took place June 15, 1984, which means that Duran was on the receiving end of one of the most vicious one punch knockouts in boxing history the day BEFORE his own birthday.

I can see why Hearns is a lot of boxing fans favorite boxer

Detroit and *KRONK* gym's finest, Tommy Hearns. By far the most underrated of that late 70s/80's Welter/Middleweight crop of four, which is unfortunate. My favorite fighter, tall, lean and the best straight right in the game Happy Birthday Hitman

Two legends fighting. Props to Hearns for his performance and props to Duran for his legacy. Two boxing icons. Respect to both men!

The Hitman vs. The Hands of Stone. You’ll never see boxing like this again.

These fights were epic they couldn’t beat each other.

Thomas was just too big and too strong, dude won Cruserweight title later in his career. All Time Great!

Now that’s boxing , technique, courage, pride and heart.

The scenery of this fight is beautiful that sky line above the arena is sick

Tommy Hearns would give anybody hell in any era!

You have to give Tommy credit for going right after Duran, because, in his prime, Roberto was a truly scary guy. Very heavy handed. Knock out power in both hands. Both of these guys are legends.

5:42 fue un golpe devastador, pero Duran alcanzó a mover la cabeza en una centésima de segundo. Esa reacción permitió que aún esté con vida.

The joy of watching Duran clueless yet pretending he was fine in the first round, the noise of the KO right from Hearns, and then seeing Duran face down on the canvas. Totally joyous!

Hearns was unstoppable that night. It's still stunning to see him take apart the great Duran that fast. Duran of course so insanely tough he gets up from that horrifying last KO shot. Most men would be dead. Great moment in boxing!

What was so impressive was the respect both fighters showed for each othe- touching gloves at the beginning of each round etc. This was classic boxing.

The fight game missing this type of action this what I like to see greatness 🥊

Gentlemen's fight. They touch gloves several times. Devastating knockout by Tommy, but I like that Duran was trying to throw counterpunch haymakers right up to the end.

vicious shot. Hearns, Duran, Leonard, Hagler, Pryor, Aguello...the 80s had some awesome fighters

Arguably Hearns' greatest performance against a Hall of Fame fighter in Duran. Nobody in boxing history would have beaten THIS Hearns! Straight KILLA!!

Both great fighters Hearns was like a Ferris wheel on full spin 🥊 🎡🥊

🤔I've been watching boxing since the mid 80s and to this day in 2024 Thomas Hearns's right hand at 5:43 is still by far the fastest punch I've ever seen in my life!! 🤯🤯

To all the ducking, trying to protect the '0' current breed of boxers; this is how you truly cement a legacy and be regarded as an all time great.

My Lord, that was one of the sickest knockouts I've ever seen. Hearns was just too long and too quick for Duran.

Legendary!! My tv shook

Era notable el miedo en los ojos de Durán.

This is peak Hearns. Just look at him. Shredded, lightning-quick, that atomic right hand. He breezed through one of the toughest fighters in history like Duran was an annoying fly. WHat a performance.

Hearns was younger and fresher at 25 with only 2 fights since 23. The knockout punch was a thing of beauty. Duran was definitely a warrior but coming down from 190lbs to 154lbs at age 32/33 was to much when facing a future all time great. I love the respect the Hearns paid Duran throughout the fight by touching gloves before and after rounds.