Some of the ones I've seen are:
Frazier - Ali I
I would say that Frazier hook that put Ali down in the 15th was incredible, I can't believe Ali got up so quickly from that.
Morales - Pac I
When Morales started brawling with Pac at the end of the 12th round in there first fight Pac hit Morales with everthing, I even think he threw his water bottle at Morales and I couldn't believe Morales didn't even go down although he looked wobbly.
Randleman - Fedor
Its not boxing but in Pride when Kevin Randleman suplexed Fedor that was devistating.
How about that hellacious uppercut that Chris landed on Mike Watson in their second bout. That had him in the clouds throughout the whole minute interval and into the next round...
It was spectacular in that he got up from the first knockdown of his career, having been spanked for 10.9 rounds and delivered a punch like that. But not quite as devastating as the sneak right hand on Benn or six-inch uppercut on Close - those ringside will tell you how devastating Eubank could be when (on the rare occasions) up-close, and these two punches in particular I'd like to of been ringside for, they just seemed quite devastating, not as devastating as the sneak right hand that KO'd Jarvis, but devastating still.
Shavers-Holmes......is the standard.
Another shot that I cannot believe didn't end the fight:
Bowe-Holyfield I.....the first right uppercut, which started it all, that damn near tore Holy's head off.
Oh yeah...that cut had Holy looking like the exorcist. Damn near spun his head around on his neck 180 degrees.
Chris Eubank's sneak right hand on Nigel Benn in 1990 in round seven was a heck of a shot IMO, and his six-inch uppercut with his back against the ropes that put Ray Close down in Glasgow (how did he get up?).
How about that hellacious uppercut that Chris landed on Mike Watson in their second bout. That had him in the clouds throughout the whole minute interval and into the next round...
When Nigel Benn hit McClellan in the early 90s.
Benn hit him so hard that he can still hardly walk, is 80% deaf, and is totally blind.
Tragic. I believe that this was the beginning of the end for Benn as he was never the same after this fight.
Shavers-Holmes......is the standard.
Another shot that I cannot believe didn't end the fight:
Bowe-Holyfield I.....the first right uppercut, which started it all, that damn near tore Holy's head off.
lol what about Lewis' uppercut that almost decapitated Vitali
Yes...and there were a couple of those!
Corrales has been floored several times by shots that would have finished many others. Castillo I comes to mind.
Tyson ate a buffet's worth from Lennox before finally falling in round nine. Some truly brutal shots, what a chin on Tyson.
Some of the bombs Holyfield took from Bowe definitely warrant mentioning, as well as some of the shots he got from Iron Mike in their first fight.
If my memory serves me right, Hagler unleashed a round-long barrage on Mugabi that rocked him but didn't finish him, and Hagler calmly ate a monster Mugabi uppercut in the same fight.
Speaking of uppercuts, didn't Buster Douglas eat a monster one from Iron Mike that dropped him but didn't KO him?
Also, honorable mention to the Ward bodyshot that dropped Gatti in the 9th and the crazy flurry at the end of round 5.
Also, late in Corrales/Castillo I, Chico unleashed a bomb that the announcers rightly described as being right on the chin; Castillo, of course, ate it with aplomb.
Oh yeah, a lesser-known one is the body shot that one fighter laid on another before dropping his hands and getting KOed himself later in the same round. (I can't remember the fighters, but the guy who won (and ate the body shot) is the guy who lost to Juan Manuel Marquez because he threw up blood in the spit bucket between rounds...Robby something?)
Robbie Peden vs. Nate Campbell. I think Campbell broke Peden's rib, before dropping his hands and getting knocked the hell out.
Chris Eubank's sneak right hand on Nigel Benn in 1990 in round seven was a heck of a shot IMO, and his six-inch uppercut with his back against the ropes that put Ray Close down in Glasgow (how did he get up?).
I just remembered that both Benn and McClellan landed huge shots on each other.
And, Gatti unloaded everything on Ward in the 3rd round of fight number 2, to no avail.
If my memory serves me right, Hagler unleashed a round-long barrage on Mugabi that rocked him but didn't finish him, and Hagler calmly ate a monster Mugabi uppercut in the same fight.
Speaking of uppercuts, didn't Buster Douglas eat a monster one from Iron Mike that dropped him but didn't KO him?
Also, honorable mention to the Ward bodyshot that dropped Gatti in the 9th and the crazy flurry at the end of round 5.
Also, late in Corrales/Castillo I, Chico unleashed a bomb that the announcers rightly described as being right on the chin; Castillo, of course, ate it with aplomb.
Oh yeah, a lesser-known one is the body shot that one fighter laid on another before dropping his hands and getting KOed himself later in the same round. (I can't remember the fighters, but the guy who won (and ate the body shot) is the guy who lost to Juan Manuel Marquez because he threw up blood in the spit bucket between rounds...Robby something?)
Agree with Arguello's right against Pryor - Pryor's head snapped back so hard it looked like it should of broken his neck.
(also landed some other shots that would of stopped most fighters)
The way Pryor went into that fight I think you'd have to literally kill him to stop him.
Chilling stuff.
Arguello's right against Boom Boom Mancini worth a mention as well.
(I think it was at the end of the 10th)
Probably the the most perfectly timed shot I've ever seen, with Mancini fully commited to the attack, yet Mancini didn't even go all the way down.
Incredible heart by Mancini.
Trinidad-Vargas
Vargas took all those shots and got up each time. Vargas lost by TKO not KO. He got up from all five knockdowns. Not to mention staying on his feet with De la Hoya and Mosley. That's heart.
Damn, I like that. I have to put that in my sig.
Non-KO punch?
This is an easy one for moi...
It's either Earnie Shavers right hook (I believe) on Larry Holmes midway into their second fight....or that devastating right cross that Alexis Arguello landed on Aaron Pryor late in their first bout.
Both of those punches should have had the guys on the receiving ends of em OUT. Great displays of heart though by both Holmes and Pryor.
Also Ibeabuchi dropping Byrd with that hookercut.
most brutal non-fight-ending punches/combos (no particular order):
shavers dropping larry holmes
morrison's left hook on ruddock
tyson's right hook-uppercut to the body and head on ribalta
tyson's mean combo on ribalta that made his mouth piece fly out
ibeabuchi's uppercut on byrd that made him foam from the mouth
lennox's big right hand that buckled grant's legs