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UFC Fight Night: Dern vs. Yan
Yan Xiaonan
Yan Xiaonan
15-3 · CHN
VS
Mackenzie Dern
Mackenzie Dern
12-2 · USA
October 1, 2022 · Las Vegas, Nevada, USA
Strawweight · 5 rounds · Main event
115.5lb
Weigh-in
115.5lb
Yan Xiaonan def. Mackenzie Dern by M-DEC, R5 5:00
Performance
Round by round
SSTDKDCtrl
R1
Xiaonan28/520/000:16
Dern16/420/401:01
R2
Xiaonan8/90/001:50
Dern9/150/002:44
R3
Xiaonan32/660/000:24
Dern18/451/400:12
R4
Xiaonan38/560/001:28
Dern14/380/200:47
R5
Xiaonan7/120/000:13
Dern4/111/104:35
Total
Xiaonan113/1950/004:11
Dern61/1512/1109:19

Scorecards

Xiaonan vs Dern

RdJunichiro KamijoMichael BellSal D'AmatoCommunity
R110-910-910-910-9
R29-109-109-108.7-10
R310-910-910-910-9
R410-910-910-910-9
R59-108-109-108.3-10
Total48-4747-4748-4747-47

Media (19 cards) · avg 47.546.9 · 12 Xiaonan · 0 Dern · 7 draws

Official cards + public consensus via MMA Decisions. Per round: Xiaonan-Dern.

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
XiaonanWin probabilityDern
42.6%57.4%
KO / TKO
29%
Submission
13%
Decision
59%
Expected fight time: 18.7 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 Xiaonan, blue toward Dern. Tap a bar for why.

Predicted outcomes
Xiaonan43%
Wins by
Model
Equity
Mkt
KO / TKO16%38%11%
Submission2%3%3%
Decision25%59%18%
Predicted output
Sig. strikes89 (38121)act 113
Takedowns0.4 (0.01.7)act 0
Dern57%
Wins by
Model
Equity
Mkt
KO / TKO13%22%6%
Submission11%20%46%
Decision33%58%17%
Predicted output
Sig. strikes77 (33105)act 61
Takedowns1.4 (0.04.3)act 2
Combined totals~166 sig strikes~1.7 takedownsmkt —
How it ends
mkt —
R114%
R211%
R38%
R45%
R53%
Distance59%
Fighter props
Most sig. strikestie 0.6%
Xiaonan
54.1%-120
Dern
+12045.3%
Most takedownstie 34.5%
Xiaonan
14.6%+350
Dern
-35051.0%
Significant strikes — over/under
Xiaonan
Expected: 88.8
89
Over 89
39.4%
+152
Exactly 89
0.5%
push
Under 89
60.1%
-152
0112223
Dern
Expected: 77.0
77
Over 77
39.4%
+152
Exactly 77
0.6%
push
Under 77
59.9%
-152
097193
Takedowns — over/under
Xiaonan
Expected: 0.4
0.5
Over 0.5
25.1%
+298
Under 0.5
74.9%
-298
035
Dern
Expected: 1.4
1.5
Over 1.5
41.4%
+142
Under 1.5
58.6%
-142
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 18.7 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
Xiaonan42.6%30.6%+12.0+213
Dern57.4%69.4%−12.0-263
By method
Xiaonan by KO/TKO12.2%10.5%+1.7+700
Xiaonan by submission5.4%3.1%+2.3+2603
Xiaonan by decision25.0%17.5%+7.5+380
Dern by KO/TKO16.4%5.9%+10.5+1316
Dern by submission7.3%45.9%−38.6-120
Dern by decision33.7%17.0%+16.7+396
Total rounds (over)
Over 4.5 rds62.0%38.1%+23.9+148
Goes the distance
Fight goes to decision58.7%34.2%+24.5+176

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
72.6Striking54.9
Xiaonan +17.7
48.4Grappling42.3
Xiaonan +6.2
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
XiaonanDern
Tale of the tape
Ratings (Elo)
1577
Pound-for-pound
1590
1576
Divisional
1589
1509
Striking offense
1492
1500
Striking defense
1507
1476
Grappling offense
1508
1513
Grappling defense
1523
Physical
33 yrs
Age
29 yrs
5'5"
Height
5'4"
63"
Reach
63"
Orthodox
Stance
Orthodox
Striking (UFC career)
5.66
Strikes landed / min
3.16
42%
Strike accuracy
35%
3.77
Strikes absorbed / min
4.35
62%
Strike defense
55%
Grappling (UFC career)
1.06
Takedowns / 15 min
0.46
67%
Takedown accuracy
9%
65%
Takedown defense
40%
0.0
Sub attempts / 15 min
2.0
Form & résumé
75%
UFC win rate
78%
-2
Win/loss streak
+1
60%
Last-5 win rate
80%
0%
Finish rate
57%
Recent opp. quality
210
Days since last fight
175
Recent form (last 5 UFC)
Yan Xiaonan
  • LMarina RodriguezS-DEC R3
    Close +2237mo before
  • LCarla EsparzaKO/TKO R2
    Close -1301y 4mo before
  • WClaudia GadelhaU-DEC R3
    Close -1551y 11mo before
  • WKarolina KowalkiewiczU-DEC R3
    Close -2652y 7mo before
  • WAngela HillU-DEC R3
    Close -2203y 4mo before
Mackenzie Dern
  • WTecia PenningtonS-DEC R3
    Close -1206mo before
  • LMarina RodriguezU-DEC R5
    Close -1931y before
  • WNina NunesSUB R1
    Close +1051y 6mo before
  • WVirna JandirobaU-DEC R3
    Close -1601y 10mo before
  • WRanda MarkosSUB R1
    Close -1772y before
Xiaonan — win / loss by method
Record: 15-3-0, 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
6 wins, 1 loss
W
40% of wins
L
33% of losses
Submission
1 win, 1 loss
W
7% of wins
L
33% of losses
Decision
8 wins, 1 loss
W
53% of wins
L
33% of losses
UFC
6win2loss0draw0NC
WinsLosses
0 (0%)KO/TKO(50%) 1
0 (0%)Submission(0%) 0
6 (100%)Decision(50%) 1
Non-UFC
9win1loss0draw1NC
WinsLosses
6 (67%)KO/TKO(0%) 0
1 (11%)Submission(100%) 1
2 (22%)Decision(0%) 0
Dern — win / loss by method
Record: 12-2-0

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
0 wins, 0 losses
W
0% of wins
L
0% of losses
Submission
7 wins, 0 losses
W
58% of wins
L
0% of losses
Decision
5 wins, 2 losses
W
42% of wins
L
100% of losses
UFC
7win2loss0draw0NC
WinsLosses
0 (0%)KO/TKO(0%) 0
4 (57%)Submission(0%) 0
3 (43%)Decision(100%) 2
Non-UFC
5win0loss0draw0NC
WinsLosses
0 (0%)KO/TKO() 0
3 (60%)Submission() 0
2 (40%)Decision() 0

Profiles

Experience
Xiaonan
Dern
8
UFC fights
9
113.0 min · 14.1 avg
Octagon time
98.6 min · 11.0 avg
16y 8m
Career length
10y 0m
UFC schedule strength

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

Xiaonan
Dern
94W–29L · 76.4%
Overall
87W–32L · 73.1%
62W–22L · 73.8%
Wins
67W–30L · 69.1%
32W–7L · 82.1%
Losses
20W–2L · 90.9%
Non-UFC schedule strength
Xiaonan
Dern
5W–5L · 50.0%
Overall
18W–10L · 64.3%
3W–3L · 50.0%
Wins
18W–10L · 64.3%
2W–2L · 50.0%
Losses
0W–0L
Distance striking
Xiaonan
Dern
7.48
Landed / min
3.82
40.1%
Accuracy
29.5%
66.1%
Defense
57.9%
0.00
Knockdowns / 15 min
0.15
65.9%
Time at distance
61.1%
Grappling & control
Xiaonan
Dern
1.06
Takedowns / 15 min
0.46
66.7%
Takedown accuracy
9.1%
65.2%
Takedown defense
40.0%
0.00
Sub attempts / 15 min
1.98
26.0%
Control share
70.1%
Strike target map
Xiaonan
  • Head71%(455)div 61%
  • Body11%(70)div 22%
  • Legs18%(114)div 16%
Dern
  • Head73%(227)div 61%
  • Body15%(47)div 22%
  • Legs12%(38)div 16%

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

Yan Xiaonan
CloseSSTDKDCtrl

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

Mackenzie Dern
CloseSSTDKDCtrl

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