Carlos Ulberg Sets UFC Record With Fastest Light Heavyweight KO

by Emma Tucker
Carlos Ulberg Sets UFC Record With Fastest Light Heavyweight KO

Carlos Ulberg Sets UFC Record With Fastest Light Heavyweight KO...

New Zealand MMA fighter Carlos Ulberg made UFC history Saturday night by scoring the fastest knockout in light heavyweight division history. His 8-second finish of Alonzo Menifield at UFC Fight Night in Las Vegas shattered the previous record of 11 seconds set by Ryan Jimmo in 2012.

The stunning victory came as Ulberg (9-1) faked a low kick before landing a devastating right hand that sent Menifield crashing to the canvas. Referee Herb Dean immediately waved off the bout at the 0:08 mark of the first round, sending the T-Mobile Arena crowd into a frenzy.

Ulberg's record-breaking performance is trending across US sports media as one of the most spectacular knockouts in recent UFC history. The 33-year-old City Kickboxing product has now won five consecutive fights, with four coming by knockout.

The victory propels Ulberg into the UFC's top 15 light heavyweight rankings for the first time in his career. UFC President Dana White called the knockout "one of the most vicious I've ever seen" during the post-fight press conference.

Fans flooded social media with reactions to the lightning-fast finish, with many comparing it to Jorge Masvidal's famous 5-second flying knee KO of Ben Askren in 2019. The UFC's official Twitter account shared the knockout clip, which has already amassed over 2 million views.

Ulberg's record-setting night comes at a pivotal moment for the light heavyweight division, which currently lacks dominant contenders behind champion Alex Pereira. The New Zealander called for a fight against top-10 opponent Anthony Smith during his post-fight interview.

The knockout also marks another highlight for City Kickboxing, the Auckland-based gym that produced former middleweight champion Israel Adesanya. Ulberg's rapid rise through the division could set up major matchups later in 2026.

Sports analysts note Ulberg's combination of striking precision and fight IQ makes him one of the most dangerous newcomers in the UFC. His record-breaking performance Saturday night has instantly elevated his profile among American fight fans.

With the light heavyweight division in flux following Pereira's recent title win, Ulberg's devastating knockout could position him for a breakthrough year. The UFC has already announced he'll headline a Fight Night event later this summer.

Emma Tucker

Editor at Radio Insular covering trending news and global updates.