Ranking the 6 Fastest Knockouts Ever Recorded in UFC History 

Julius Walker found himself on the wrong side of history at UFC Baku after suffering a stunning eight-second knockout loss to Abdul Rakhman Yakhyaev. Ironically, Walker had predicted before the fight that a one-punch knockout was possible, but it was he who ended up staring at the lights moments after the opening bell. 

Yakhyaev wasted no time making a statement, dropping Walker with the very first strike he threw and securing the finish just eight seconds into their light heavyweight clash at the National Gymnastics Arena in Baku, Azerbaijan. The knockout tied for the eighth-fastest finish in UFC history and stands as the second-fastest knockout ever recorded in the light heavyweight division. 

With Yakhyaev’s lightning-fast finish reigniting interest in the sport’s quickest stoppages, here’s a look at the six fastest knockouts in UFC history.

6. Chan Sung Jung vs. Mark Hominick — 7 Seconds (UFC 140)

Entering UFC 140 in Toronto, Mark Hominick was the heavy hometown favorite, coming off a grueling, courageous 5-round title fight against Jose Aldo. Meanwhile, Chan Sung Jung was expected to be a tough test, but no one predicted a historic blowout. The moment the bell rang, Hominick looked to assert dominance and fired an aggressive, looping left hook. Jung, showing remarkable composure and elite counter-striking instincts, slipped just outside the punch.

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As Hominick’s momentum carried him forward, Jung fired a textbook, laser-accurate straight right hand right down the center line. The punch caught Hominick cleanly on the jaw, instantly short-circuiting his legs. ‘The Korean Zombie’ followed him to the canvas, landing a rapid succession of ground-and-pound strikes before the referee rushed in to wave it off at exactly the 7-second mark, silencing the Canadian crowd.

5. Todd Duffee vs. Tim Hague — 7 Seconds (UFC 102)

Heavyweight knockouts are always spectacular, but Todd Duffee’s promotional debut at UFC 102 set a standard that still stands as the fastest finish in the history of the 265-pound division. Duffee, a highly touted prospect with an imposing physical frame, wasted absolutely no time introducing himself to the MMA world. As Tim Hague bounced forward to establish range, Duffee stiffly stepped in and threw a standard, fundamental lead jab. 

While it looked like a simple range-finder, the sheer power behind Duffee’s frame turned the jab into a battering ram. The blow caught Hague completely off-guard, dropping him flat onto his back. Duffee smelled blood immediately, diving in with terrifying speed for a heavyweight to unleash a barrage of heavy, unanswered ground strikes. Just seven seconds into the first round, the referee had seen enough, solidifying Duffee’s place in the record books.

4. Ryan Jimmo vs. Anthony Perosh — 7 Seconds (UFC 149)

The late Ryan Jimmo knew how to make an entrance. Making his highly anticipated UFC debut in Calgary, Jimmo was determined to show the light heavyweight division that he belonged on the big stage. Facing veteran submission specialist Anthony Perosh, Jimmo bypassed any feeling-out process entirely. Perosh moved forward in a standard boxing guard, but Jimmo caught him completely cold by launching a massive, looping overhand right.

The timing was immaculate; the strike bypassed Perosh’s guard and connected cleanly with the side of his chin. The impact was so devastating that Perosh was rendered completely unconscious before his body hit the canvas, falling stiffly backward. After landing one single, academic punch on the ground, Jimmo celebrated his 7-second masterpiece by doing the “robot” dance inside the Octagon, an iconic moment that perfectly matched the spectacular nature of the knockout.

3. Terrance McKinney vs. Matt Frevola — 7 Seconds (UFC 263)

Taking a fight in the UFC on just eight days’ notice is a daunting task, but Terrance McKinney turned his short-notice 155lbs debut into an unforgettable showcase of explosive athleticism. Facing a durable and dangerous veteran in Matt Frevola, McKinney executed a striking sequence of breathtaking speed. As Frevola stepped forward to take the center of the Octagon, McKinney stood his ground and fired a lightning-quick one-two combination: a snapping lead left jab followed instantly by a thunderous straight right hand.

Both punches landed flush on Frevola’s chin in the span of a single second. Frevola collapsed instantly to the canvas. McKinney swarmed with a ferocious, rapid-fire sequence of ground strikes, forcing the referee to intervene immediately. Clocked at exactly seven seconds, it officially became the fastest knockout in the history of the UFC’s lightweight division.

2. Duane Ludwig vs. Jonathan Goulet — 6 Seconds (UFC Fight Night 3)

For well over a decade, this fight stood as a unique piece of UFC lore due to an official timekeeping error. On the night of the event, the official commission timekeeper clocked the stoppage at 11 seconds. However, video replay clearly demonstrated that Jonathan Goulet was completely unconscious from a Duane Ludwig right cross just six seconds after the opening bell.

UFC CEO Dana White eventually corrected the record publicly, acknowledging Ludwig as the long-standing record holder for the fastest knockout until 2019. Ludwig’s flawless counter-striking ability perfectly illustrated how elite kickboxing fundamentals can dismantle an opponent in the blink of an eye.

1. Jorge Masvidal vs. Ben Askren — 5 Seconds (UFC 239)

The undisputed, most iconic fast finish in combat sports history belongs to Jorge Masvidal. The buildup to this welterweight clash at UFC 239 was filled with genuine animosity, with undefeated former ONE champion Ben Askren promising to use his world-class wrestling to ground and spirit away Masvidal’s hype. Masvidal had a radically different blueprint. 

Standing in his corner with his hands behind his back, he sprinted across the Octagon the absolute millisecond the referee initiated the action. Anticipating that Askren would automatically dip his head and shoot for a double-leg takedown, Masvidal launched his entire body into the air, connecting with a devastating flying knee directly to Askren’s temple. Askren was knocked unconscious in mid-air. 

While Masvidal landed two supplementary follow-up strikes on the ground before referee Jason Herzog could physically pull him away, the fight was effectively over at the five-second mark. It remains the absolute pinnacle of perfect tactical anticipation and flawless athletic execution inside the Octagon.