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UFC 273: Volkanovski vs. The Korean Zombie
Aleksei Oleinik
Aleksei Oleinik
59-16-1 · RUS
VS
Jared Vanderaa
Jared Vanderaa
12-7 · USA
April 9, 2022 · Jacksonville, Florida, USA
Heavyweight · 3 rounds
244.0lb
Weigh-in
266.0lb
Aleksei Oleinik def. Jared Vanderaa by SUB (Scarf Hold), R1 3:39
Performance
Round by round
SSTDKDCtrl
R1 · 3:39
Oleinik8/220/000:44
Vanderaa15/400/000:54
Total
Oleinik8/220/000:44
Vanderaa15/400/000:54

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
OleinikWin probabilityVanderaa
42.7%57.3%
KO / TKO
50%
Submission
29%
Decision
21%
Expected fight time: 7.8 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 Oleinik, blue toward Vanderaa. Tap a bar for why.

Predicted outcomes
Oleinik43%
Wins by
Model
Equity
Mkt
KO / TKO15%34%8%
Submission21%49%31%
Decision7%17%11%
Predicted output
Sig. strikes31 (1342)act 8
Takedowns0.9 (0.03.2)act 0
Vanderaa57%
Wins by
Model
Equity
Mkt
KO / TKO35%62%33%
Submission8%14%4%
Decision14%24%14%
Predicted output
Sig. strikes38 (1652)act 15
Takedowns0.2 (0.00.7)act 0
Combined totals~70 sig strikes~1.1 takedownsmkt —
How it ends
mkt —
R137%
R231%
R311%
Distance21%
Fighter props
Most sig. strikestie 1.3%
Oleinik
42.4%+133
Vanderaa
-13356.3%
Most takedownstie 48.2%
Oleinik
42.1%-436
Vanderaa
+4369.7%
Significant strikes — over/under
Oleinik
Expected: 31.2
31
Over 31
39.3%
+151
Exactly 31
1.5%
push
Under 31
59.2%
-151
04079
Vanderaa
Expected: 38.5
38.5
Over 38.5
39.7%
+152
Under 38.5
60.3%
-152
04997
Takedowns — over/under
Oleinik
Expected: 0.9
1
Over 1
30.2%
+180
Exactly 1
15.6%
push
Under 1
54.2%
-180
035
Vanderaa
Expected: 0.2
0
Over 0
14.1%
Exactly 0
85.9%
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 7.8 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
Oleinik42.7%44.4%−1.7+115
Vanderaa57.3%55.6%+1.7-140
By method
Oleinik by KO/TKO21.4%7.6%+13.8+981
Oleinik by submission12.2%31.1%−18.9+163
Oleinik by decision9.1%10.7%−1.6+661
Vanderaa by KO/TKO28.7%32.6%−3.9+150
Vanderaa by submission16.4%3.8%+12.6+2056
Vanderaa by decision12.2%14.2%−2.0+474
Total rounds (over)
Over 1.5 rds63.2%59.4%+3.8-120
Over 2.5 rds32.6%31.1%+1.5+202
Goes the distance
Fight goes to decision21.4%25.6%−4.2+266

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
60.2Striking57.8
Oleinik +2.4
66.3Grappling5.6
Oleinik +60.7
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
OleinikVanderaa
Tale of the tape
Ratings (Elo)
1566
Pound-for-pound
1493
1566
Divisional
1493
1516
Striking offense
1508
1475
Striking defense
1485
1531
Grappling offense
1473
1477
Grappling defense
1509
Physical
44 yrs
Age
29 yrs
6'2"
Height
6'4"
80"
Reach
80"
Orthodox
Stance
Orthodox
Striking (UFC career)
3.55
Strikes landed / min
4.41
50%
Strike accuracy
48%
3.99
Strikes absorbed / min
4.97
45%
Strike defense
43%
Grappling (UFC career)
2.16
Takedowns / 15 min
0.00
47%
Takedown accuracy
33%
Takedown defense
20%
2.2
Sub attempts / 15 min
0.0
Form & résumé
53%
UFC win rate
25%
-3
Win/loss streak
-2
40%
Last-5 win rate
25%
88%
Finish rate
0%
Recent opp. quality
294
Days since last fight
56
Recent form (last 5 UFC)
Aleksei Oleinik
  • LSerghei SpivacU-DEC R3
    Close +20010mo before
  • LChris DaukausKO/TKO R1
    Close +1531y 2mo before
  • LDerrick LewisKO/TKO R2
    Close +1601y 8mo before
  • WFabricio WerdumS-DEC R3
    Close +2701y 11mo before
  • WMaurice GreeneSUB R2
    Close +1102y 3mo before
Jared Vanderaa
  • LAndrei ArlovskiS-DEC R3
    Close +12856d before
  • LAlexandr RomanovKO/TKO R2
    Close +4026mo before
  • WJustin TafaU-DEC R3
    Close +15511mo before
  • LSerghei SpivacKO/TKO R2
    Close +1951y 2mo before
Oleinik — win / loss by method
Record: 59-16-1

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
8 wins, 9 losses
W
14% of wins
L
56% of losses
Submission
46 wins, 2 losses
W
78% of wins
L
13% of losses
Decision
5 wins, 5 losses
W
8% of wins
L
31% of losses
UFC
8win7loss0draw0NC
WinsLosses
1 (13%)KO/TKO(71%) 5
6 (75%)Submission(0%) 0
1 (13%)Decision(29%) 2
Non-UFC
51win9loss1draw0NC
WinsLosses
7 (14%)KO/TKO(44%) 4
40 (78%)Submission(22%) 2
4 (8%)Decision(33%) 3
Vanderaa — win / loss by method
Record: 12-7-0

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
7 wins, 2 losses
W
58% of wins
L
29% of losses
Submission
3 wins, 2 losses
W
25% of wins
L
29% of losses
Decision
2 wins, 3 losses
W
17% of wins
L
43% of losses
UFC
1win3loss0draw0NC
WinsLosses
0 (0%)KO/TKO(67%) 2
0 (0%)Submission(0%) 0
1 (100%)Decision(33%) 1
Non-UFC
11win4loss0draw0NC
WinsLosses
7 (64%)KO/TKO(0%) 0
3 (27%)Submission(50%) 2
1 (9%)Decision(50%) 2

Profiles

Experience
Oleinik
Vanderaa
15
UFC fights
4
97.0 min · 6.5 avg
Octagon time
49.3 min · 12.3 avg
29y 9m
Career length
11y 1m
UFC schedule strength

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

Oleinik
Vanderaa
235W–80L · 74.6%
Overall
61W–24L · 71.8%
109W–38L · 74.1%
Wins
4W–2L · 66.7%
126W–42L · 75.0%
Losses
57W–22L · 72.2%
Non-UFC schedule strength
Oleinik
Vanderaa
399W–173L · 69.8%
Overall
152W–90L · 62.8%
292W–142L · 67.3%
Wins
116W–79L · 59.5%
107W–31L · 77.5%
Losses
36W–11L · 76.6%
Distance striking
Oleinik
Vanderaa
7.32
Landed / min
6.33
43.4%
Accuracy
44.9%
55.2%
Defense
52.3%
0.31
Knockdowns / 15 min
0.00
32.5%
Time at distance
57.8%
Grappling & control
Oleinik
Vanderaa
2.16
Takedowns / 15 min
0.00
46.7%
Takedown accuracy
33.3%
Takedown defense
20.0%
2.16
Sub attempts / 15 min
0.00
58.4%
Control share
17.1%
Strike target map
Oleinik
  • Head66%(227)div 65%
  • Body24%(82)div 19%
  • Legs10%(35)div 16%
Vanderaa
  • Head49%(106)div 65%
  • Body29%(63)div 19%
  • Legs22%(48)div 16%

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

Aleksei Oleinik
CloseSSTDKDCtrl

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

Jared Vanderaa
CloseSSTDKDCtrl

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