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UFC 273: Volkanovski vs. The Korean Zombie
VS
Petr Yan
Petr Yan
16-2 · RUS
April 9, 2022 · Jacksonville, Florida, USA
Bantamweight · 5 rounds
134.5lb
Weigh-in
134.0lb
Aljamain Sterling def. Petr Yan by S-DEC, R5 5:00
Performance
Round by round
SSTDKDCtrl
R1
Sterling19/400/200:00
Yan13/260/000:00
R2
Sterling17/291/203:50
Yan4/50/000:00
R3
Sterling6/131/403:43
Yan8/150/000:07
R4
Sterling8/100/400:00
Yan18/250/003:51
R5
Sterling12/180/1000:58
Yan20/320/001:54
Total
Sterling62/1102/2208:31
Yan63/1030/005:52

Scorecards

Sterling vs Yan

RdChris LeeEliseo RodriguezSal D'AmatoCommunity
R19-1010-910-99.4-9.6
R210-910-910-910-8.7
R310-910-910-910-9
R49-109-109-109-10
R59-109-109-109-10
Total47-4848-4748-4747.4-47.3

Media (18 cards) · avg 47.746.4 · 13 Sterling · 0 Yan · 5 draws

Official cards + public consensus via MMA Decisions. Per round: Sterling-Yan.

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
SterlingWin probabilityYan
44.2%55.8%
KO / TKO
29%
Submission
15%
Decision
56%
Expected fight time: 17.7 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 Sterling, blue toward Yan. Tap a bar for why.

Predicted outcomes
Sterling44%
Wins by
Model
Equity
Mkt
KO / TKO8%17%5%
Submission11%26%8%
Decision25%57%11%
Predicted output
Sig. strikes77 (32104)act 62
Takedowns0.6 (0.02.6)act 2
Yan56%
Wins by
Model
Equity
Mkt
KO / TKO21%38%33%
Submission4%7%8%
Decision31%55%36%
Predicted output
Sig. strikes74 (31100)act 63
Takedowns0.9 (0.03.2)act 0
Combined totals~151 sig strikes~1.5 takedownsmkt —
How it ends
mkt —
R113%
R220%
R36%
R43%
R52%
Distance56%
Fighter props
Most sig. strikestie 0.6%
Sterling
50.7%-104
Yan
+10448.6%
Most takedownstie 35.8%
Sterling
28.0%+130
Yan
-13036.2%
Significant strikes — over/under
Sterling
Expected: 76.8
77
Over 77
39.3%
+153
Exactly 77
0.6%
push
Under 77
60.0%
-153
097193
Yan
Expected: 73.7
73.5
Over 73.5
39.9%
+151
Under 73.5
60.1%
-151
093185
Takedowns — over/under
Sterling
Expected: 0.6
0.5
Over 0.5
40.8%
+145
Under 0.5
59.2%
-145
035
Yan
Expected: 0.9
1
Over 1
30.8%
+170
Exactly 1
16.9%
push
Under 1
52.4%
-170
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 17.7 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
Sterling44.2%22.5%+21.7+324
Yan55.8%77.5%−21.7-437
By method
Sterling by KO/TKO12.8%4.9%+7.9+1578
Sterling by submission6.7%7.9%−1.2+934
Sterling by decision24.8%10.7%+14.1+663
Yan by KO/TKO16.1%33.2%−17.1+147
Yan by submission8.4%7.6%+0.8+981
Yan by decision31.3%35.7%−4.4+129
Total rounds (over)
Over 1.5 rds86.8%76.5%+10.3-446
Over 2.5 rds67.1%66.1%+1.0-241
Over 3.5 rds61.5%58.3%+3.2-165
Over 4.5 rds58.3%50.1%+8.2-114
Goes the distance
Fight goes to decision56.0%49.4%+6.6-112

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
79.4Striking76.7
Sterling +2.7
42.6Grappling61.4
Yan +18.8
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
SterlingYan
Tale of the tape
Ratings (Elo)
1669
Pound-for-pound
1636
1654
Divisional
1630
1512
Striking offense
1531
1534
Striking defense
1511
1515
Grappling offense
1512
1510
Grappling defense
1551
Physical
32 yrs
Age
29 yrs
5'7"
Height
5'7"
71"
Reach
67"
Orthodox
Stance
Switch
Striking (UFC career)
4.84
Strikes landed / min
5.98
50%
Strike accuracy
53%
2.20
Strikes absorbed / min
4.14
63%
Strike defense
62%
Grappling (UFC career)
1.77
Takedowns / 15 min
1.75
25%
Takedown accuracy
62%
41%
Takedown defense
90%
0.9
Sub attempts / 15 min
0.2
Form & résumé
80%
UFC win rate
89%
+6
Win/loss streak
+1
100%
Last-5 win rate
80%
42%
Finish rate
50%
Recent opp. quality
399
Days since last fight
161
Recent form (last 5 UFC)
Aljamain Sterling
  • WPetr YanDQ R4
    Close +1081y 1mo before
  • WCory SandhagenSUB R1
    Close -1151y 10mo before
  • WPedro MunhozU-DEC R3
    Close -1602y 10mo before
  • WJimmie RiveraU-DEC R3
    Close +1153y 2mo before
  • WCody StamannSUB R2
    Close -1703y 7mo before
Petr Yan
  • WCory SandhagenU-DEC R5
    Close -2605mo before
  • LAljamain SterlingDQ R4
    Close -1281y 1mo before
  • WJose AldoKO/TKO R5
    Close -2151y 9mo before
  • WUrijah FaberKO/TKO R3
    Close -4702y 4mo before
  • WJimmie RiveraU-DEC R3
    Close -3602y 10mo before
Sterling — win / loss by method
Record: 20-3-0

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
2 wins, 1 loss
W
10% of wins
L
33% of losses
Submission
8 wins, 0 losses
W
40% of wins
L
0% of losses
Decision
9 wins, 2 losses
W
45% of wins
L
67% of losses
DQ / other
1 win, 0 losses
W
5% of wins
L
0% of losses
UFC
12win3loss0draw0NC
WinsLosses
1 (8%)KO/TKO(33%) 1
4 (33%)Submission(0%) 0
6 (50%)Decision(67%) 2
1 (8%)DQ / other(0%) 0
Non-UFC
8win0loss0draw0NC
WinsLosses
1 (13%)KO/TKO() 0
4 (50%)Submission() 0
3 (38%)Decision() 0
Yan — win / loss by method
Record: 16-2-0

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
7 wins, 0 losses
W
44% of wins
L
0% of losses
Submission
1 win, 0 losses
W
6% of wins
L
0% of losses
Decision
8 wins, 1 loss
W
50% of wins
L
50% of losses
DQ / other
0 wins, 1 loss
W
0% of wins
L
50% of losses
UFC
8win1loss0draw0NC
WinsLosses
4 (50%)KO/TKO(0%) 0
0 (0%)Submission(0%) 0
4 (50%)Decision(0%) 0
0 (0%)DQ / other(100%) 1
Non-UFC
8win1loss0draw0NC
WinsLosses
3 (38%)KO/TKO(0%) 0
1 (13%)Submission(0%) 0
4 (50%)Decision(100%) 1

Profiles

Experience
Sterling
Yan
15
UFC fights
9
186.1 min · 12.4 avg
Octagon time
137.1 min · 15.2 avg
15y 3m
Career length
13y 4m
UFC schedule strength

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

Sterling
Yan
267W–51L · 84.0%
Overall
182W–44L · 80.5%
205W–34L · 85.8%
Wins
163W–41L · 79.9%
62W–17L · 78.5%
Losses
19W–3L · 86.4%
Non-UFC schedule strength
Sterling
Yan
34W–17L · 66.7%
Overall
67W–9L · 88.2%
34W–17L · 66.7%
Wins
56W–9L · 86.2%
0W–0L
Losses
11W–0L · 100.0%
Distance striking
Sterling
Yan
6.93
Landed / min
5.40
42.7%
Accuracy
45.4%
67.0%
Defense
64.2%
0.00
Knockdowns / 15 min
1.09
47.0%
Time at distance
75.8%
Grappling & control
Sterling
Yan
1.77
Takedowns / 15 min
1.75
24.7%
Takedown accuracy
61.5%
41.2%
Takedown defense
89.6%
0.89
Sub attempts / 15 min
0.22
61.3%
Control share
68.5%
Strike target map
Sterling
  • Head49%(443)div 62%
  • Body33%(298)div 21%
  • Legs18%(159)div 17%
Yan
  • Head72%(593)div 62%
  • Body20%(163)div 21%
  • Legs8%(64)div 17%

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

Aljamain Sterling
CloseSSTDKDCtrl

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

Petr Yan
CloseSSTDKDCtrl

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