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UFC Fight Night: Rozenstruik vs. Sakai
Marcin Tybura
Marcin Tybura
21-6 · POL
VS
Walt Harris
Walt Harris
13-9 · USA
June 5, 2021 · Las Vegas, Nevada, USA
Heavyweight · 3 rounds
251.0lb
Weigh-in
264.0lb
Marcin Tybura def. Walt Harris by KO/TKO (Punches), R1 4:06
Performance
Round by round
SSTDKDCtrl
R1 · 4:06
Tybura4/101/202:18
Harris23/400/000:06
Total
Tybura4/101/202:18
Harris23/400/000:06

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
TyburaWin probabilityHarris
70.2%29.8%
KO / TKO
47%
Submission
4%
Decision
49%
Expected fight time: 10.5 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 Tybura, blue toward Harris. Tap a bar for why.

Predicted outcomes
Tybura70%
Wins by
Model
Equity
Mkt
KO / TKO26%37%23%
Submission4%6%9%
Decision40%57%27%
Predicted output
Sig. strikes48 (2065)act 4
Takedowns1.1 (0.03.7)act 1
Harris30%
Wins by
Model
Equity
Mkt
KO / TKO21%69%22%
Submission0%1%6%
Decision9%30%12%
Predicted output
Sig. strikes37 (1551)act 23
Takedowns0.1 (0.00.3)act 0
Combined totals~86 sig strikes~1.2 takedownsmkt —
How it ends
mkt —
R122%
R221%
R38%
Distance49%
Fighter props
Most sig. strikestie 1.1%
Tybura
57.5%-139
Harris
+13941.4%
Most takedownstie 44.2%
Tybura
48.9%-703
Harris
+7037.0%
Significant strikes — over/under
Tybura
Expected: 48.2
48
Over 48
39.4%
+151
Exactly 48
1.0%
push
Under 48
59.6%
-151
061121
Harris
Expected: 37.5
37.5
Over 37.5
39.7%
+152
Under 37.5
60.3%
-152
04794
Takedowns — over/under
Tybura
Expected: 1.1
1
Over 1
35.4%
+136
Exactly 1
16.4%
push
Under 1
48.2%
-136
035
Harris
Expected: 0.1
0
Over 0
11.6%
Exactly 0
88.4%
push
Under 0
0.0%
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 10.5 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
Tybura70.2%61.4%+8.8-181
Harris29.8%38.6%−8.8+147
By method
Tybura by KO/TKO32.7%23.5%+9.2+250
Tybura by submission2.9%9.1%−6.2+800
Tybura by decision34.6%27.4%+7.2+200
Harris by KO/TKO13.9%21.9%−8.0+275
Harris by submission1.2%6.3%−5.1+1200
Harris by decision14.7%11.7%+3.0+600
Total rounds (over)
Over 1.5 rds78.2%61.0%+17.2-188
Over 2.5 rds57.3%44.2%+13.1+110
Goes the distance
Fight goes to decision49.3%40.6%+8.7+130

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
68.3Striking59.0
Tybura +9.3
52.5Grappling36.4
Tybura +16.1
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
TyburaHarris
Tale of the tape
Ratings (Elo)
1596
Pound-for-pound
1513
1596
Divisional
1513
1513
Striking offense
1517
1491
Striking defense
1508
1508
Grappling offense
1480
1546
Grappling defense
1529
Physical
35 yrs
Age
37 yrs
6'3"
Height
6'5"
78"
Reach
77"
Orthodox
Stance
Southpaw
Striking (UFC career)
3.70
Strikes landed / min
2.95
50%
Strike accuracy
38%
3.25
Strikes absorbed / min
3.43
56%
Strike defense
55%
Grappling (UFC career)
1.62
Takedowns / 15 min
0.30
45%
Takedown accuracy
29%
82%
Takedown defense
72%
0.1
Sub attempts / 15 min
0.2
Form & résumé
62%
UFC win rate
40%
+4
Win/loss streak
-2
80%
Last-5 win rate
40%
38%
Finish rate
100%
Recent opp. quality
168
Days since last fight
224
Recent form (last 5 UFC)
Marcin Tybura
  • WGreg HardyKO/TKO R2
    Close -1106mo before
  • WBen RothwellU-DEC R3
    Close +1308mo before
  • WMaxim GrishinU-DEC R3
    Close -11211mo before
  • WSerghei SpivacU-DEC R3
    Close +1001y 3mo before
  • LAugusto SakaiKO/TKO R1
    Close +1051y 9mo before
Walt Harris
  • LAlexander VolkovKO/TKO R2
    Close +1507mo before
  • LAlistair OvereemKO/TKO R2
    Close -1551y 1mo before
  • WAleksei OleinikKO/TKO R1
    Close -1501y 11mo before
  • WSerghei SpivacKO/TKO R1
    Close -1652y 1mo before
  • WDaniel SpitzKO/TKO R2
    Close -2203y before
Tybura — win / loss by method
Record: 21-6-0

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
8 wins, 4 losses
W
38% of wins
L
67% of losses
Submission
6 wins, 0 losses
W
29% of wins
L
0% of losses
Decision
7 wins, 2 losses
W
33% of wins
L
33% of losses
UFC
8win5loss0draw0NC
WinsLosses
3 (38%)KO/TKO(60%) 3
0 (0%)Submission(0%) 0
5 (63%)Decision(40%) 2
Non-UFC
13win1loss0draw0NC
WinsLosses
5 (38%)KO/TKO(100%) 1
6 (46%)Submission(0%) 0
2 (15%)Decision(0%) 0
Harris — win / loss by method
Record: 13-9-0, 1 NC

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
13 wins, 4 losses
W
100% of wins
L
44% of losses
Submission
0 wins, 1 loss
W
0% of wins
L
11% of losses
Decision
0 wins, 3 losses
W
0% of wins
L
33% of losses
DQ / other
0 wins, 1 loss
W
0% of wins
L
11% of losses
UFC
6win8loss0draw1NC
WinsLosses
6 (100%)KO/TKO(50%) 4
0 (0%)Submission(13%) 1
0 (0%)Decision(25%) 2
0 (0%)DQ / other(13%) 1
Non-UFC
7win1loss0draw0NC
WinsLosses
7 (100%)KO/TKO(0%) 0
0 (0%)Submission(0%) 0
0 (0%)Decision(100%) 1

Profiles

Experience
Tybura
Harris
13
UFC fights
15
166.2 min · 12.8 avg
Octagon time
99.8 min · 6.7 avg
14y 9m
Career length
15y 4m
UFC schedule strength

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

Tybura
Harris
239W–68L · 77.9%
Overall
270W–64L · 80.8%
158W–50L · 76.0%
Wins
101W–18L · 84.9%
81W–18L · 81.8%
Losses
169W–46L · 78.6%
Non-UFC schedule strength
Tybura
Harris
136W–36L · 79.1%
Overall
44W–29L · 60.3%
124W–35L · 78.0%
Wins
38W–28L · 57.6%
12W–1L · 92.3%
Losses
6W–1L · 85.7%
Distance striking
Tybura
Harris
4.82
Landed / min
2.46
43.5%
Accuracy
31.0%
61.0%
Defense
59.5%
0.09
Knockdowns / 15 min
1.35
49.5%
Time at distance
77.6%
Grappling & control
Tybura
Harris
1.62
Takedowns / 15 min
0.30
45.0%
Takedown accuracy
28.6%
82.1%
Takedown defense
72.2%
0.09
Sub attempts / 15 min
0.15
68.2%
Control share
32.8%
Strike target map
Tybura
  • Head68%(419)div 65%
  • Body17%(103)div 19%
  • Legs15%(93)div 15%
Harris
  • Head67%(198)div 65%
  • Body24%(72)div 19%
  • Legs8%(24)div 15%

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

Marcin Tybura
CloseSSTDKDCtrl

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

Walt Harris
CloseSSTDKDCtrl

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