In the world of mixed martial arts, knockouts are the ultimate exclamation point. They define legacies, silence doubters, and electrify arenas. And while the UFC has no shortage of power punchers, one name currently stands above the rest—a true predator in 4-ounce gloves, hunting finishes with every strike.

So who is the baddest knockout machine in the UFC right now?

Let’s break it down.

Khalil Rountree Jr. unfazed after UFC 307 title fight loss: 'I really just  embraced the moment' - MMA Fighting

The Criteria: What Makes a “Knockout Machine”?

We’re not just talking about one big KO. A true knockout machine checks several boxes:

Consistency – Multiple knockouts, not a one-hit wonder

Technique – Not just wild power, but precision

Finishing Intent – Goes for the kill, every round

Fear Factor – Opponents are visibly hesitant

Impact – Headlining cards, breaking records, turning heads

And right now, the fighter who embodies all of that is:

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Sergei Pavlovich – The UFC’s Most Terrifying Finisher

Standing at 6’3″, weighing over 260 lbs, and packing nuclear weapons in both fists, Sergei Pavlovich has become the most feared knockout artist in the UFC heavyweight division.

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His stats are terrifying:

6 straight first-round KOs

100% finish rate in UFC wins

Longest average fight time: under 3 minutes

KO wins over Tai Tuivasa, Derrick Lewis, Curtis Blaydes—all heavyweight monsters.

“Pavlovich doesn’t fight—you survive him,” said one commentator.

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What makes him especially dangerous is his speed and composure. He throws like a middleweight but hits like a truck. He doesn’t rush—he stalks, cuts off the cage, and when he connects, it’s lights out.

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Who Else Is in the Conversation?

While Pavlovich is at the top, there are a few other names worth mentioning:

Max Holloway (Featherweight/Lightweight)

His KO of Justin Gaethje at UFC 300 was the stuff of legend—last-second, walk-off, no-look punch. He may not be a knockout artist by volume, but when he finds the moment, he delivers.

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Jiri Procházka (Light Heavyweight)

Wild, unpredictable, and deadly. His KOs come from angles you don’t see coming—but they come, and they finish fights.

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Alex Pereira (Middleweight/Light Heavyweight)

Elite kickboxing power, clean technique, and a calm killer instinct. Multiple KOs across two divisions—including title-winning knockouts. He’s a real threat to anyone standing across from him.

UFC Fight Night: Thompson vs. Pettis (Main Event) 3/24/19 - Stream the  Fight Live - Watch ESPN

Why Pavlovich Still Leads

What separates Sergei Pavlovich from the rest is how efficiently and consistently he ends fights. There’s no wasted motion, no decisions, no drama. Just violence. His knockout power feels inevitable.

“When Pavlovich steps into the cage, fans don’t wonder if he’ll finish the fight—they wonder how fast.

Final Word: The Knockout King of Now

In a promotion built on finishes, Sergei Pavlovich is doing it better—and scarier—than anyone else in the UFC today. He may not be the most outspoken. He may not do backflips or viral dances. But when the octagon door shuts, he’s the one you least want to see standing in front of you.

And that’s why, right now, he’s the UFC’s baddest knockout machine.