UFC Pound-for-Pound Fighter Rankings: Carlos Ulberg makes debut after stunning knockout win

The new light heavyweight champion has all the makings of being an elite fighter for a while

Brian Campbell

Apr 17, 2026

3:35 pm ET

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7 min read

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Although he wasn't forced to go five rounds for the first time in his career as a means to justify his elite status at 205 pounds, Carlos Ulberg found a much more difficult (and dramatic) way to do just that at UFC 327 last weekend.

Ulberg (14-1) extended his win streak to an impressive 10 straight with a shocking knockout of Jiri Prochazka not long after suffering a tear of the ACL in his right knee. The victory, via a perfect lead left hook to the nose of the former champion, allowed the 35-year-old native of New Zealand to claim the vacant light heavyweight title in about as unique a way as possible.

Even though it's likely that Ulberg will need significant time away for surgery and recovery, the victory ended any and all remaining skepticism about the product of the renowned City Kickboxing Gym in Auckland, which can now claim a third UFC champion alongside current featherweight king Alexander Volkanovski and former two-time middleweight champion Israel Adesanya.

Ulberg, who lost his 2021 UFC debut via second-round knockout to Kennedy Nzechukwu, took the long road in rebuilding himself throughout a five-year journey in which he stepped up his level of competition in a very incremental fashion. But the victory over Prochazka, which was his fourth straight over a former champion or title challenger, makes him the clear head of the division in the post-Alex Pereira era, even if an interim title fight is likely for the near future.

Not only does Ulberg have size and strength at 6-foot-4, with an elite combination of speed and power, he has the confidence and precision to be a continued force once his recovery is complete.

Men's pound-for-pound rankings

1. Islam Makhachev -- Welterweight champion

Record: 28-1 | Previous ranking: No. 1

Makhachev turned UFC 322 in November into a night of historical conquest as the former lightweight champion dominated Jack Della Maddalena with his grappling over five rounds to become the 11th two-division champion in UFC history. The 34-year-old also equaled Anderson Silva's record for consecutive wins with 16. Makhachev now must deal with a hungry group of contenders in the sport's deepest division at 170 pounds.

2. Ilia Topuria -- Lightweight champion

Record: 17-0 | Previous ranking: No. 2

Topuria took a massive step forward in becoming the new face of the promotion by knocking out Charles Oliveira at UFC 317 in June 2025 to capture the vacant lightweight title. The first unbeaten, two-division champion in UFC history just might have the most technical and explosive boxing skills the Octagon has ever seen. Topuria, after taking time off to deal with personal issues, will make his first title defense in a unification fight against interim beltholder Justin Gaethje in the headlining bout at the White House in June.

3. Alex Pereira -- Heavyweight

Record: 13-3 | Previous ranking: No. 3

Talk about a comeback victory. The 38-year-old Brazilian slugger had looked sluggish in a decision loss against the technical Magomed Ankalaev in March. Vowing to return at full health after competing at just 40% of himself, Pereira wasted no time in finishing Ankalaev in their October rematch at UFC 320 to regain the title. After recently vacating his title, Pereira will make his heavyweight debut in June at the White House in an interim title bout against Ciryl Gane.

4. Alexander Volkanovski -- Featherweight champion

Record: 28-4 | Previous ranking: No. 4

Now a two-time featherweight king, the 37-year-old Volkanovski continues to put his 2024 knockout title loss to Topuria in the rearview mirror. At UFC 325 in January, Volkanovski returned home to Australia to defeat Diego Lopes for the second time in nine months, making it look even easier in the rematch. "Alexander the Great" improved to 18-1 as a pro at 145 pounds and said he has no plans to retire as he welcomes the next contender in line.

5. Khamzat Chimaev -- Middleweight champion

Record: 15-0 | Previous ranking: No. 5

Despite years of inactivity due to injury, illness and bad luck, Chimaev proved at UFC 319 in August just how dangerous he truly is when fully healthy. He also shut up any critics wondering if he possessed five-round cardio by utterly dominating Dricus du Plessis on the ground in a shutout decision. Chimaev will make his first title defense against former champion Sean Strickland in the main event of UFC 328 in May.

6. Petr Yan -- Bantamweight champion

Record: 20-5 | Previous ranking: No. 6

The former 135-pound champion completed an incredible comeback after losing three of four fights from 2021 to 2023. Yan brought a three-fight win streak into his UFC 323 rematch against Merab Dvalishvili in December and dominated the defend