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UFC 243: Whittaker vs. Adesanya
Serghei Spivac
Serghei Spivac
9-1 · MDA
VS
Tai Tuivasa
Tai Tuivasa
10-3 · AUS
October 5, 2019 · Melbourne, Victoria, Australia
Heavyweight · 3 rounds
Serghei Spivac def. Tai Tuivasa by SUB (Arm Triangle), R2 3:14
Performance
Round by round
SSTDKDCtrl
R1
Spivac10/204/502:25
Tuivasa13/370/000:06
R2 · 3:14
Spivac13/222/301:57
Tuivasa8/130/000:00
Total
Spivac23/426/804:22
Tuivasa21/500/000:06

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
SpivacWin probabilityTuivasa
77.4%22.6%
KO / TKO
62%
Submission
11%
Decision
28%
Expected fight time: 8.6 min
What drives the pick

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

Predicted outcomes
Spivac77%
Wins by
Model
Equity
Mkt
KO / TKO46%60%
Submission10%13%
Decision21%27%
Predicted output
Sig. strikes41 (2353)act 23
Takedowns1.7 (0.04.5)act 6
Tuivasa23%
Wins by
Model
Equity
Mkt
KO / TKO16%68%
Submission0%2%
Decision7%30%
Predicted output
Sig. strikes37 (2048)act 21
Takedowns0.1 (0.00.0)act 0
Combined totals~77 sig strikes~1.7 takedownsmkt —
How it ends
mkt —
R133%
R225%
R314%
Distance28%
Fighter props
Most sig. strikestie 1.4%
Spivac
54.2%-122
Tuivasa
+12244.4%
Most takedownstie 35.8%
Spivac
61.1%-1992
Tuivasa
+19923.1%
Significant strikes — over/under
Spivac
Expected: 40.8
41
Over 41
41.3%
+138
Exactly 41
1.6%
push
Under 41
57.1%
-138
051102
Tuivasa
Expected: 36.6
36.5
Over 36.5
42.7%
+134
Under 36.5
57.3%
-134
04692
Takedowns — over/under
Spivac
Expected: 1.7
1.5
Over 1.5
47.9%
+109
Under 1.5
52.1%
-109
036
Tuivasa
Expected: 0.1
0
Over 0
6.6%
Exactly 0
93.4%
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 8.6 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
Spivac77.4%26.0%+51.4+270
Tuivasa22.6%74.0%−51.4-330

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
33.6Striking67.3
Tuivasa +33.6
0.0Grappling18.5
Tuivasa +18.5
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
SpivacTuivasa
Tale of the tape
Ratings (Elo)
1512
Pound-for-pound
1538
1512
Divisional
1538
1494
Striking offense
1512
1492
Striking defense
1505
1500
Grappling offense
1487
1500
Grappling defense
1524
Physical
24 yrs
Age
26 yrs
6'3"
Height
6'2"
78"
Reach
75"
Orthodox
Stance
Southpaw
Striking (UFC career)
1.20
Strikes landed / min
4.37
33%
Strike accuracy
49%
20.40
Strikes absorbed / min
3.67
39%
Strike defense
52%
Grappling (UFC career)
0.00
Takedowns / 15 min
0.00
Takedown accuracy
0%
Takedown defense
67%
0.0
Sub attempts / 15 min
0.0
Form & résumé
0%
UFC win rate
60%
-1
Win/loss streak
-2
0%
Last-5 win rate
60%
Finish rate
67%
Recent opp. quality
154
Days since last fight
119
Recent form (last 5 UFC)
Serghei Spivac
  • LWalt HarrisKO/TKO R1
    Close +1455mo before
Tai Tuivasa
  • LBlagoy IvanovU-DEC R3
    Close -1604mo before
  • LJunior Dos SantosKO/TKO R2
    Close +14010mo before
  • WAndrei ArlovskiU-DEC R3
    Close -2301y 4mo before
  • WCyril AskerKO/TKO R1
    Close -2751y 8mo before
  • WRashad CoulterKO/TKO R1
    Close -1751y 11mo before
Spivac — win / loss by method
Record: 9-1-0

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
4 wins, 1 loss
W
44% of wins
L
100% of losses
Submission
5 wins, 0 losses
W
56% of wins
L
0% of losses
Decision
0 wins, 0 losses
W
0% of wins
L
0% of losses
UFC
0win1loss0draw0NC
WinsLosses
0 ()KO/TKO(100%) 1
0 ()Submission(0%) 0
0 ()Decision(0%) 0
Non-UFC
9win0loss0draw0NC
WinsLosses
4 (44%)KO/TKO() 0
5 (56%)Submission() 0
0 (0%)Decision() 0
Tuivasa — win / loss by method
Record: 10-3-0

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
9 wins, 2 losses
W
90% of wins
L
67% of losses
Submission
0 wins, 0 losses
W
0% of wins
L
0% of losses
Decision
1 win, 1 loss
W
10% of wins
L
33% of losses
UFC
3win2loss0draw0NC
WinsLosses
2 (67%)KO/TKO(50%) 1
0 (0%)Submission(0%) 0
1 (33%)Decision(50%) 1
Non-UFC
7win1loss0draw0NC
WinsLosses
7 (100%)KO/TKO(100%) 1
0 (0%)Submission(0%) 0
0 (0%)Decision(0%) 0

Profiles

Experience
Spivac
Tuivasa
1
UFC fights
5
0.8 min · 0.8 avg
Octagon time
44.4 min · 8.9 avg
11y 10m
Career length
14y 1m
UFC schedule strength

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

Spivac
Tuivasa
11W–7L · 61.1%
Overall
80W–27L · 74.8%
0W–0L
Wins
44W–20L · 68.8%
11W–7L · 61.1%
Losses
36W–7L · 83.7%
Non-UFC schedule strength
Spivac
Tuivasa
353W–123L · 74.2%
Overall
32W–23L · 58.2%
353W–123L · 74.2%
Wins
25W–18L · 58.1%
0W–0L
Losses
7W–5L · 58.3%
Distance striking
Spivac
Tuivasa
1.59
Landed / min
5.23
33.3%
Accuracy
45.3%
50.0%
Defense
55.0%
0.00
Knockdowns / 15 min
0.68
75.6%
Time at distance
64.2%
Grappling & control
Spivac
Tuivasa
0.00
Takedowns / 15 min
0.00
Takedown accuracy
0.0%
Takedown defense
66.7%
0.00
Sub attempts / 15 min
0.00
0.0%
Control share
60.6%
Strike target map
Spivac
  • Head0%(0)div 66%
  • Body0%(0)div 19%
  • Legs100%(1)div 14%
Tuivasa
  • Head67%(130)div 66%
  • Body17%(33)div 19%
  • Legs16%(31)div 14%

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

Serghei Spivac
CloseSSTDKDCtrl

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

Tai Tuivasa
CloseSSTDKDCtrl

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