The Ultimate Fight Fan
+ Log a bet
UFC Fight Night: Rozenstruik vs. Sakai
VS
Augusto Sakai
Augusto Sakai
15-2-1 · BRA
June 5, 2021 · Las Vegas, Nevada, USA
Heavyweight · 5 rounds · Main event
254.0lb
Weigh-in
255.5lb
Jairzinho Rozenstruik def. Augusto Sakai by KO/TKO (Punches), R1 4:59
Performance
Round by round
SSTDKDCtrl
R1 · 4:59
Rozenstruik16/290/010:02
Sakai3/140/000:00
Total
Rozenstruik16/290/010:02
Sakai3/140/000:00

Pre-fight

The model's read going in

The walk-forward model's call at the time of the bout — persisted out-of-sample, with no hindsight about the result.

Prediction
RozenstruikWin probabilitySakai
54.0%46.0%
KO / TKO
60%
Submission
14%
Decision
26%
Expected fight time: 11.7 min
Retrospective pick: the walk-forward model's call at the time of the fight — persisted out-of-sample, with no hindsight about the result.
What drives the pick

Each bar is a feature's push on the model from the center axis. Red pushes toward Rozenstruik, blue toward Sakai. Tap a bar for why.

Predicted outcomes
Rozenstruik54%
Wins by
Model
Equity
Mkt
KO / TKO35%66%33%
Submission8%15%5%
Decision11%19%14%
Predicted output
Sig. strikes47 (1964)act 16
Takedowns0.3 (0.01.5)act 0
Sakai46%
Wins by
Model
Equity
Mkt
KO / TKO24%53%22%
Submission6%13%8%
Decision16%34%18%
Predicted output
Sig. strikes51 (2169)act 3
Takedowns0.5 (0.02.1)act 0
Combined totals~97 sig strikes~0.8 takedownsmkt —
How it ends
mkt —
R140%
R218%
R38%
R45%
R53%
Distance26%
Fighter props
Most sig. strikestie 1.0%
Rozenstruik
46.9%+111
Sakai
-11152.1%
Most takedownstie 59.5%
Rozenstruik
17.3%+135
Sakai
-13523.3%
Significant strikes — over/under
Rozenstruik
Expected: 47.0
47
Over 47
39.2%
+152
Exactly 47
1.0%
push
Under 47
59.8%
-152
059118
Sakai
Expected: 50.5
50.5
Over 50.5
39.8%
+151
Under 50.5
60.2%
-151
064127
Takedowns — over/under
Rozenstruik
Expected: 0.3
0.5
Over 0.5
20.9%
+378
Under 0.5
79.1%
-378
035
Sakai
Expected: 0.5
0.5
Over 0.5
26.5%
+277
Under 0.5
73.5%
-277
035

Odds are model-implied (no real prop market is priced for these). The “most” prices are draw-no-bet — a tie (for takedowns, usually 0–0) is a push, so each side is priced off its chance of winning given a result, while the % shown is the raw chance of landing strictly more. Drag a line in half-point steps: a half line (e.g. 2.5) is a clean over/under, while a whole number adds a third outcome — landing exactly on it, a push — so over, exact and under sum to 100%. On a whole number the over/under odds are draw-no-bet (priced off the decisive mass, since the push refunds), so the two sides stay mirror images rather than implying an arbitrage.

Expected fight time 11.7 min. Predicted-output ranges are percentiles of the model’s simulated fights: sig strikes the middle 50% (25th–75th); takedowns the wider 10th–90th, since they’re 0 in most fights so a narrow band would collapse to 0. Win-by-method = win probability × that fighter’s own method split: the model forecasts how the fight ends, and that forecast is divided between the corners by each fighter’s finishing record — UFC wins in full, earlier-career wins at half weight, as of fight night — reconciled so the fighters’ totals still equal their win probabilities and the methods still total the fight-level forecast above. “Equity” is each of those over that fighter’s win % — how they win given that they win — so a column adds to 100%, and it differs by corner. A fighter with no classifiable wins at any level leans on the fight-level split. “How it ends” is the model’s round-of-finish split. “Mkt” is the de-vigged market prop (consensus across books), shown for context, not as a betting signal; rounds & totals slots fill as that data lands. Percentages are apportioned by largest remainder, so each set adds to its total exactly and an individual figure can sit a point off its own rounding.

Model vs market
Final
ModelMarketGapLine
To win
Rozenstruik54.0%54.1%−0.1-131
Sakai46.0%45.9%+0.1+108
By method
Rozenstruik by KO/TKO32.3%33.2%−0.9+150
Rozenstruik by submission7.7%4.9%+2.8+1601
Rozenstruik by decision14.0%13.8%+0.2+500
Sakai by KO/TKO27.5%22.1%+5.4+275
Sakai by submission6.6%7.5%−0.9+1000
Sakai by decision11.9%18.4%−6.5+350
Total rounds (over)
Over 1.5 rds60.4%64.5%−4.1-225
Over 2.5 rds42.8%51.0%−8.2-120
Over 3.5 rds34.3%42.3%−8.0+120
Over 4.5 rds29.3%37.5%−8.2+150
Goes the distance
Fight goes to decision25.9%35.4%−9.5+163

Market % is the de-vigged (no-vig) consensus across the books that price both fighters; the line is the average across books with the min–max range in parentheses. Gap is the model minus the market in points (+ = the model rates that outcome above the market). Thin or one-sided markets are flagged or left blank rather than shown as a fabricated %. Shown for context, not as a bet — the closing line is the sharpest public price and the model trails it on average. For 5-round bouts the model splits its round-3+ finish mass into rounds 3–5 by the historical within-bucket rate, so the over-3.5 / 4.5 lines carry a model estimate.

Trait web
57.9Striking63.3
Sakai +5.4
22.2Grappling33.1
Sakai +10.9
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
RozenstruikSakai
Tale of the tape
Ratings (Elo)
1576
Pound-for-pound
1582
1576
Divisional
1582
1517
Striking offense
1514
1505
Striking defense
1487
Grappling offense
Grappling defense
Physical
33 yrs
Age
30 yrs
6'2"
Height
6'3"
78"
Reach
77"
Orthodox
Stance
Orthodox
Striking (UFC career)
3.14
Strikes landed / min
5.27
49%
Strike accuracy
49%
3.48
Strikes absorbed / min
4.86
39%
Strike defense
47%
Grappling (UFC career)
0.00
Takedowns / 15 min
0.23
Takedown accuracy
50%
80%
Takedown defense
33%
0.0
Sub attempts / 15 min
0.0
Form & résumé
71%
UFC win rate
80%
-1
Win/loss streak
-1
60%
Last-5 win rate
80%
100%
Finish rate
50%
Recent opp. quality
98
Days since last fight
273
Recent form (last 5 UFC)
Jairzinho Rozenstruik
  • LCiryl GaneU-DEC R5
    Close +1983mo before
  • WJunior Dos SantosKO/TKO R2
    Close -14310mo before
  • LFrancis NgannouKO/TKO R1
    Close +2251y 1mo before
  • WAlistair OvereemKO/TKO R5
    Close -1501y 6mo before
  • WAndrei ArlovskiKO/TKO R1
    Close -1601y 7mo before
Augusto Sakai
  • LAlistair OvereemKO/TKO R5
    Close +1309mo before
  • WBlagoy IvanovS-DEC R3
    Close -1151y before
  • WMarcin TyburaKO/TKO R1
    Close -1251y 9mo before
  • WAndrei ArlovskiS-DEC R3
    Close -1652y 1mo before
  • WChase ShermanKO/TKO R3
    Close -2302y 8mo before
Rozenstruik — win / loss by method
Record: 11-2-0

Bar length is fight count (largest bar = full width); shading splits finishes by round and decisions by unanimous vs split — tap a bar for the round-by-round count.

KO/TKO
10 wins, 1 loss
W
91% of wins
L
50% of losses
Submission
0 wins, 0 losses
W
0% of wins
L
0% of losses
Decision
1 win, 1 loss
W
9% of wins
L
50% of losses
UFC
5win2loss0draw0NC
WinsLosses
5 (100%)KO/TKO(50%) 1
0 (0%)Submission(0%) 0
0 (0%)Decision(50%) 1
Non-UFC
6win0loss0draw0NC
WinsLosses
5 (83%)KO/TKO() 0
0 (0%)Submission() 0
1 (17%)Decision() 0
Sakai — win / loss by method
Record: 15-2-1

Bar length is fight count (largest bar = full width); shading splits finishes by round and decisions by unanimous vs split — tap a bar for the round-by-round count.

KO/TKO
11 wins, 1 loss
W
73% of wins
L
50% of losses
Submission
0 wins, 0 losses
W
0% of wins
L
0% of losses
Decision
4 wins, 1 loss
W
27% of wins
L
50% of losses
UFC
4win1loss0draw0NC
WinsLosses
2 (50%)KO/TKO(100%) 1
0 (0%)Submission(0%) 0
2 (50%)Decision(0%) 0
Non-UFC
11win1loss1draw0NC
WinsLosses
9 (82%)KO/TKO(0%) 0
0 (0%)Submission(0%) 0
2 (18%)Decision(100%) 1

Profiles

Experience
Rozenstruik
Sakai
7
UFC fights
5
65.6 min · 9.4 avg
Octagon time
65.5 min · 13.1 avg
14y 2m
Career length
14y 9m
UFC schedule strength

Opponents' records on fight night — toggle their full cross-promotional record vs UFC bouts only.

Rozenstruik
Sakai
139W–52L · 72.8%
Overall
119W–48L · 71.3%
118W–49L · 70.7%
Wins
73W–30L · 70.9%
21W–3L · 87.5%
Losses
46W–18L · 71.9%
Non-UFC schedule strength
Rozenstruik
Sakai
27W–15L · 64.3%
Overall
62W–22L · 73.8%
27W–15L · 64.3%
Wins
36W–12L · 75.0%
0W–0L
Losses
26W–10L · 72.2%
Distance striking
Rozenstruik
Sakai
3.40
Landed / min
5.34
43.6%
Accuracy
40.2%
42.9%
Defense
53.9%
1.14
Knockdowns / 15 min
0.23
70.0%
Time at distance
65.6%
Grappling & control
Rozenstruik
Sakai
0.00
Takedowns / 15 min
0.23
Takedown accuracy
50.0%
80.0%
Takedown defense
33.3%
0.00
Sub attempts / 15 min
0.00
3.3%
Control share
47.2%
Strike target map
Rozenstruik
  • Head57%(117)div 65%
  • Body11%(23)div 19%
  • Legs32%(66)div 15%
Sakai
  • Head64%(221)div 65%
  • Body24%(84)div 19%
  • Legs12%(40)div 15%

Where each fighter lands significant strikes (career). “div” = the weight-class average.

Jairzinho Rozenstruik
CloseSSTDKDCtrl

Per-fight: SS & TD shown landed/attempted; Close = consensus closing line.

Augusto Sakai
CloseSSTDKDCtrl

Per-fight: SS & TD shown landed/attempted; Close = consensus closing line.