Fighter profile

Jairzinho Rozenstruik

“Bigi Boy”

Heavyweight · UFC record 9-6 · 15 detailed UFC fights · Last fight Sat 1 Feb 2025

Power Striker

Fighter ratings

Ratings V2Rated

Striking (offense)79

Power85

Striking defense80

Takedown defense80

WrestlingProvisional measure57

Ratings V2 descriptive 0–100 scores (15 detailed fights; as of Sat 1 Feb 2025). Not win probabilities or rankings. Missing values stay unavailable.

Chin and Cardio · Frozen through October 17, 2026

R1 research scale

ChinEvidence: DEVELOPING84.0

CardioEvidence: DEVELOPING90.3

Source: R1 public_candidate_display · status: Research candidate · as of Sat 17 Oct 2026. Separate frozen research scale; fights after October 17, 2026 are not reflected.

About these ratings

Ratings are domain-specific descriptive scales. Equal point differences across different domains do not imply equal absolute skill differences.

Striking (offense) · Ratings V2: Ratings V2 striking-offense score built from recorded significant strikes landed per round, significant-strike accuracy and significant-strike differential.
Power · Ratings V2: Recorded knockdown and KO/TKO-win threat under the Ratings V2 contract (knockdowns per round, KO/TKO win rate); not literal measured punching force.
Striking defense · Ratings V2: Recorded strike avoidance (striking defense) and bounded absorption (strikes absorbed per round) under the Ratings V2 contract.
Takedown defense · Ratings V2: Recorded defense against incoming takedown attempts (takedown defense rate) under the Ratings V2 contract.
Wrestling · Ratings V2: Ratings V2 wrestling-offense score: recorded takedowns landed per round and takedown accuracy. Not ground control or complete grappling.
Chin · R1 research scale: Exposure-adjusted recorded knockdown resistance. This is not a direct biological measurement of chin, recovery, or injury resistance.
Cardio · R1 research scale: Recorded later-round striking activity and effectiveness retention. This is not a direct physiological fitness measurement.

Ratings V2 scores follow each fighter's latest recorded state; R1 research-scale scores are frozen through 17 Oct 2026. Recovery is separate metadata, not a rating. No combined rating exists.

Profile

Height: 188 cm (6'2")
Reach: 198 cm (6'6")
Stance: Orthodox
Age: 38

Last 3: L W W (most recent last)

Career statistics

Descriptive

15 detailed UFC fights · 34 rounds of recorded statistics. Exact totals from recorded UFC fights through Sat 1 Feb 2025; not opponent-adjusted and not model inputs.

Strikes landed14.5significant, per round

Strikes absorbed11.0per round

Striking differential+3.5per round

Takedown attempts0.03per round

Takedown defense72.3%of attempts stopped

Finish rate88.9%of UFC wins

Striking

Significant strikes landed per round: 14.5
Significant strikes absorbed per round: 11.0
Differential per round (landed − absorbed): +3.5
Striking accuracy: 48.5%
Striking defense (opponent strikes avoided): 52.4%
Knockdowns per round: 0.21
Target: head / body / leg: 60.5% / 15.0% / 24.5%
Position: distance / clinch / ground: 86.8% / 7.9% / 5.3%

Per-round figures divide recorded totals by rounds with statistics. Shares are of significant strikes landed.

Wrestling and grappling

Takedown attempts per round: 0.03
Takedowns landed per round: 0.00
Takedown accuracy: 0.0%
Takedown defense: 72.3%
Control time per round: 0:01
Submission attempts per round: 0.00
Reversals per round: 0.03

Attempts and landed takedowns are counted separately; accuracy is landed ÷ attempted.

Outcomes and durability

UFC record (W-L-D, NC): 9-6-0
Finish rate (wins by KO/TKO or submission): 88.9%
Wins by KO/TKO · submission · decision: 8 · 0 · 1
Losses by KO/TKO · submission · decision: 2 · 1 · 3
Knockdowns scored / suffered: 7 / 1
Average fight time: 9:43 (over 14 bouts)

Results as recorded by UFCStats. Fight time is elapsed time (completed rounds plus ending time) and includes draws and no-contests. These are outcomes, not biological measurements.

UFC fight history

Jairzinho Rozenstruik — most recent UFC fights
Date	Opponent	Result	Method	End	Event
Sat 1 Feb 2025	Sergei Pavlovich	L	U-DEC	R3 5:00	UFC Fight Night: Adesanya vs. Imavov
Sat 17 Aug 2024	Tai Tuivasa	W	S-DEC	R3 5:00	UFC 305: Du Plessis vs. Adesanya
Sat 2 Mar 2024	Shamil Gaziev	W	KO/TKO	R4 5:00	UFC Fight Night: Rozenstruik vs. Gaziev
Sat 13 May 2023	Jailton Almeida	L	SUB Rear Naked Choke	R1 3:43	UFC Fight Night: Rozenstruik vs. Almeida
Sat 10 Dec 2022	Chris Daukaus	W	KO/TKO Punch	R1 0:23	UFC 282: Blachowicz vs. Ankalaev

Show all 15 UFC fights

Jairzinho Rozenstruik — earlier UFC fights
Date	Opponent	Result	Method	End	Event
Sat 4 Jun 2022	Alexander Volkov	L	KO/TKO Punches	R1 2:12	UFC Fight Night: Volkov vs. Rozenstruik
Sat 25 Sep 2021	Curtis Blaydes	L	U-DEC	R3 5:00	UFC 266: Volkanovski vs. Ortega
Sat 5 Jun 2021	Augusto Sakai	W	KO/TKO Punches	R1 4:59	UFC Fight Night: Rozenstruik vs. Sakai
Sat 27 Feb 2021	Ciryl Gane	L	U-DEC	R5 5:00	UFC Fight Night: Rozenstruik vs. Gane
Sat 15 Aug 2020	Junior Dos Santos	W	KO/TKO Punch	R2 3:47	UFC 252: Miocic vs. Cormier 3
Sat 9 May 2020	Francis Ngannou	L	KO/TKO Punch	R1 0:20	UFC 249: Ferguson vs. Gaethje
Sat 7 Dec 2019	Alistair Overeem	W	KO/TKO Punch	R5 4:56	UFC Fight Night: Overeem vs. Rozenstruik
Sat 2 Nov 2019	Andrei Arlovski	W	KO/TKO Punch	R1 0:29	UFC 244: Masvidal vs. Diaz
Sat 22 Jun 2019	Allen Crowder	W	KO/TKO Punches	R1 0:09	UFC Fight Night: Moicano vs. The Korean Zombie
Sat 2 Feb 2019	Junior Albini	W	KO/TKO Kick	R2 0:54	UFC Fight Night: Assuncao vs. Moraes 2

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