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Top 10 UFC knockouts of all-time: Conor McGregor’s 13-second finish to head kick that left Ronda Rousey out cold

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UFC knockouts come in a variety of vicious ways and over the years fans have seen fighters get knocked out in every manner imaginable.

From powerful punches to karate kicks and everything in between, there have been countless KOs fans have hailed as the best of all time.

Holm scored one of the biggest upsets of all time at UFC 193
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talkSPORT.com has here put together a list of 10 KOs that stand out from the rest after 30 years of sickening stoppages in MMA’s premier league.

UFC greats such as Conor McGregor, Francis Ngannou and Max Holloway make the list but who comes out on top?

10. Ronda Rousey vs Holly Holm | UFC 193

Holm literally kicks off our list with her stunning second-round KO win over Rousey.

‘Rowdy’ was the biggest star on the roster and a massive favourite to defend her bantamweight belt before being put to sleep by a Holm head kick in November 2015.

9. Kamaru Usman vs Leon Edwards | UFC 278

Edwards lived up to his nickname during his second fight with Usman in September 2022.

‘Rocky’ was down on the cards and being written off by the commentators before KO’ing Usman with a last-gasp head kick to become Britain’s second UFC champion.

Edwards shocked the world when he KO’d Usman
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8. Dan Henderson vs Michael Bisping | UFC 100

Bisping was made to pay for trash-talking Henderson when he walked into his signature ‘H-Bomb’ at the UFC’s first century-celebrating show in July 2009.

Henderson followed his unconscious rival to the floor and famously landed another massive blow before making the KO his logo.

Bisping was on the receiving end of a famous UFC KO
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7. Alistair Overeem vs Francis Ngannou | UFC 218

Ngannou’s ‘world record’ power was best captured during his December 2017 fight with Overeem.

The 6ft 4in, 18 stone heavyweight legend was sent flying through the air by an uppercut KO that still goes viral every time Ngannou fights.

Overeem is constantly reminded of his loss to Ngannou
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6. Anderson Silva vs Vitor Belfort | UFC 126

Silva’s historic middleweight title reign was filled with showstopping moments but none of them were better than his finish against Belfort in February 2011.

‘The Spider’ pulled off the UFC’s first frontkick KO against one of the most formidable opponents he ever faced.

Silva’s front kick KO of Belfort is iconic
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5. Max Holloway vs Justin Gaethje | UFC 300

Holloway scored a faceplant finish against Gaethje in the final second of their BMF fight.

It left plenty of people thinking he was the new owner of the sport’s greatest KO in the immediate aftermath of UFC 300.

Holloway faceplanted Gaethje with one second left on the clock
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4. Jose Aldo vs Conor McGregor | UFC 194

McGregor turned doubters into believers and catapulted himself to superstardom when he wiped out the best featherweight of all time in 13 seconds to become the undisputed 145lb king in December 2015.

The KO and the resulting celebration have gone down in UFC legend.

One shot was all McGregor needed to end Aldo’s decade-long winning streak
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3. Edson Barboza vs Terry Etim | UFC 142

Barboza scored the first spinning wheel kick finish 12 years ago when he turned Liverpool fighter Etim into a statue.

The move immediately booked an eternal spot in the UFC’s highlight reel of KOs.

Barboza said the knockout changed his life
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2. Impa Kasangnay vs Joaquin Buckley | UFC Fight Night 179

Buckley’s spinning kick KO of Kasangnay in October 2020 was so epic it earned presidential praise from Donald Trump and even inspired Kanye West to write new music.

Many people will have it at the top of their UFC KO list, but it just missed out on ours.

Buckley scored one of the greatest knockouts in UFC history four years ago
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1. Jorge Masvidal vs Ben Askren | UFC 239

Masvidal ended his beef with Askren in the most devastating way possible. Innovative and unexpected, ‘Gambred’ caught his rival slipping and KO’d him with a flying knee in five seconds.

After setting a near unbreakable quickest UFC KO record, Masvidal added insult to injury by mocking Askren as he lay stiff as a board on the floor.

It’s certainly the fastest KO ever, but we think it’s the best too.

No one has a quicker KO than Masvidal
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Honourable mentions: Michael Chander def. Tony Ferguson, Lyoto Machida def. Randy Couture, Cheick Kongo def. Pat Barry, Amanda Nunes def. Cris Cyborg.

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