Ground game
12 DThin offensive ground game. Wins come standing; once taken down this fighter is hunting a stand-up, not a sweep chain.
- 0.00 takedowns / 15 at 0% accuracy
- 0.00 submission attempts / 15 · 0 career sub wins
Heavyweight
“Bigi Boy”
15-6
SLpM
3.48
SApM
1.69
Str Acc
52%
Str Def
70%
TD Avg
0.00
TD Acc
0%
TD Def
86%
Sub Avg
0.00
Power striker
Fight IQ
Built from FightMetric rates, method shares, and 3 loaded UFC rows. Timing and agility are tape proxies, not lab measurements.
IQ
Ground
Defense
Counter
Reaction
proxy
Agility
proxy
TD react
Chin
Striking defense
Hard to hit clean. Low absorb rate and a quiet chin record — opponents have to work for every clean look.
Timing & reaction
Average-plus reactions. Gets touched, but rarely frozen in place when the shot or the shot-to-takedown comes.
Durability
Standard UFC durability. Can be hurt, usually recovers if the shot is not clean.
Ground game
Thin offensive ground game. Wins come standing; once taken down this fighter is hunting a stand-up, not a sweep chain.
Punching agility
Heavy or economical. Combinations are chosen, not sprayed — opponents can time the entries.
Jairzinho Rozenstruik “Bigi Boy” is a 38-year-old Orthodox heavyweight out of Suriname, camped at American Top Team. The tape read: power striker. Career mark 15-6-0 — 11 by KO/TKO, 0 by submission, 4 by decision. Fight IQ grades C+ (63).
What works. Striking defense is the standout at 86 (A). Hard to hit clean. Low absorb rate and a quiet chin record — opponents have to work for every clean look. Ground game D on 0.00 TD/15 and 0.00 sub attempts. Striking defense A at 70% / 1.69 SApM. Counter punching C+; punching agility D (output × accuracy × age curve). Takedown reaction C+ on 86% TD defense. These are tape proxies — not lab reaction times — built from FightMetric rates, finish shares, and 3 loaded UFC rows.
Where it breaks. Ground game is the soft spot (12, D). Thin offensive ground game. Wins come standing; once taken down this fighter is hunting a stand-up, not a sweep chain. Opponents who force wrestling and keep the fight on the fence have historically been the ones who make this résumé leak. Losses lean decision more often than a highlight — the issue is usually control of minutes, not a glass jaw.
Recent tape (3 bouts): W Tuivasa (Decision - Split R3) · W Gaziev (KO/TKO R4) · L Ngannou (KO/TKO R1). Form index positive over the last 3. 2 of those wins reached the championship minutes — cardio and late IQ are real.
Thin offensive ground game. Wins come standing; once taken down this fighter is hunting a stand-up, not a sweep chain.
Hard to hit clean. Low absorb rate and a quiet chin record — opponents have to work for every clean look.
Limited counter threat. Opponents can miss without paying a finishing tax.
Average-plus reactions. Gets touched, but rarely frozen in place when the shot or the shot-to-takedown comes.
Heavy or economical. Combinations are chosen, not sprayed — opponents can time the entries.
Hips arrive late. A committed wrestler will get them down; the question is what happens next.
Standard UFC durability. Can be hurt, usually recovers if the shot is not clean.
| Date | Opponent | Res | Method | Rnd | Sig |
|---|---|---|---|---|---|
| Aug 18, 2024 | Tai Tuivasa | W | Decision - Split | 3 5:00 | 91/184 |
| Mar 2, 2024 | Shamil Gaziev | W | KO/TKO | 4 5:00 | 127/215 |
| May 10, 2020 | Francis Ngannou | L | KO/TKO | 1 0:20 | 5/5 |