Heavyweight

Jairzinho Rozenstruik

Active 2018–present · rated in 4 editions · peak overall 81.0

Scouting report

Counter-hooks and patient kickboxing make Jairzinho "Bigi Boy" Rozenstruik a one-shot knockout threat in any exchange. Born in Paramaribo, Suriname, Rozenstruik transitioned from international kickboxing to author comeback knockouts in UFC main events, his power driven by a 91 Strength score and 90 Boxing punches.

Peak ratings

Boxing90
Kickboxing88
Wrestling70
BJJ62
Strength91
Durability82
Cardio78
Fight IQ80

By edition

2018–2019Overall 81
Boxing90
Kickboxing88
Wrestling70
BJJ62
Strength91
Durability82
Cardio78
Fight IQ80

Rozenstruik delivered a rookie campaign in 2019, scoring four consecutive knockout victories over Junior Albini in Fortaleza, Allen Crowder in Greenville, Andrei Arlovski at UFC 244, and knocking out Alistair Overeem in round five in Washington D.C. His professional kickboxing pedigree and one-punch counter power are reflected in a 90 Boxing and 91 Strength.

2020–2022Overall 81
Boxing90
Kickboxing88
Wrestling70
BJJ62
Strength91
Durability82
Cardio78
Fight IQ80

Between 2020 and 2021, Rozenstruik stopped former champion Junior dos Santos at UFC 252 in Las Vegas and finished Augusto Sakai with punches in round one, while dropping decisions to Ciryl Gane and Curtis Blaydes. His counter-punching combinations, low leg kicks, and takedown defense anchor his 90 Boxing and 82 Durability.

2023–2024Overall 80
Boxing89
Kickboxing88
Wrestling72
BJJ62
Strength90
Durability82
Cardio80
Fight IQ80

Rozenstruik scored a first-round knockout of Chris Daukaus at UFC 282 in Las Vegas, beat Shamil Gaziev by corner stoppage in Las Vegas in March 2024, and outpointed Tai Tuivasa at UFC 305 in Perth. His jab, low calf kicks, and counter-punching power justify his 89 Boxing and 82 Durability ratings.

2025–presentOverall 80
Boxing89
Kickboxing88
Wrestling72
BJJ62
Strength90
Durability82
Cardio80
Fight IQ80

Jairzinho Rozenstruik, the kickboxer from Paramaribo

Jairzinho Rozenstruik was born in Paramaribo, Suriname, and named after Brazilian footballer Jairzinho. He began kickboxing at seventeen and later trained with Michael Babb of the Vos Gym in Amsterdam. His kickboxing record is credited as 76 wins in 85 fights, 64 by knockout. He entered the big promotion in 2019 and won four straight, including a nine-second knockout of Allen Crowder and a knockout of Alistair Overeem at 4:56 of round five.

Rozenstruik broken down

Boxing. Very high. He knocked out Andrei Arlovski in round one in 2019 and Augusto Sakai at the end of round one in 2021.

Kickboxing. Third best rating, behind strength and boxing, which fits a man who came up as a kickboxer.

Wrestling. Modest. Curtis Blaydes beat him by decision in 2021.

BJJ. His lowest number. Jailton Almeida choked him in round one in 2023.

Strength. His top mark. Two of his knockouts came in under 30 seconds: Allen Crowder in nine seconds in 2019 and Chris Daukaus in 23 seconds in 2022.

Durability. Reasonable. Ngannou knocked him out in 20 seconds in 2020, and Volkov stopped him in round one in 2022.

Cardio. Fine for a striker. Overeem was finished at 4:56 of round five, so he can go the distance.

Fight IQ. Sound. He beat Shamil Gaziev in 2024 with a TKO at the end of round four after landing many jabs.

Strength leads a very good striking package

His highest number is strength at 91, with boxing right behind at 90. Both show in the finishes: Crowder in nine seconds, Overeem late in the fifth, and Daukaus in 23 seconds. He can end a fight in a moment.

The ground is the problem: BJJ 62

Almeida took him down and choked him in round one, and the rating reflects that. Rozenstruik is a big kickboxer whose record includes a decision loss to wrestler Blaydes as well. A team without an answer to grapplers should leave him off.

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Ratings shown are my own estimates, made with AI assistance and informed by how Jairzinho Rozenstruik is regarded by the MMA community. They are unofficial and do not constitute an assessment of Jairzinho Rozenstruik's real-world abilities. How the ratings are made. See the disclaimer below. Ratings and write-ups by Haaris A. Last reviewed 2026-09-30; spot an error? Tell us. Read our editorial standards.