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UFC Fight Night: Taira vs. Park
Chris Duncan
Chris Duncan
13-2 · GBR
VS
Mateusz Rebecki
Mateusz Rebecki
20-2 · POL
August 2, 2025 · Las Vegas, Nevada, USA
Lightweight · 3 rounds
156.0lb
Weigh-in
155.5lb
Chris Duncan def. Mateusz Rebecki by U-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
Duncan19/620/100:00
Rebecki32/740/101:00
R2
Duncan25/620/000:00
Rebecki38/881/100:19
R3
Duncan48/980/000:27
Rebecki44/1051/400:04
Total
Duncan92/2220/100:27
Rebecki114/2672/601:23

Scorecards

Duncan vs Rebecki

RdJunichiro KamijoMichael BellRon McCarthyCommunity
R110-99-109-109.2-9.8
R210-910-910-99.8-9.2
R310-910-910-99.7-9.4
Total30-2729-2829-2828.7-28.4

Media (11 cards) · avg 29.127.9 · 11 Duncan · 0 Rebecki

Official cards + public consensus via MMA Decisions. Per round: Duncan-Rebecki.

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
DuncanWin probabilityRebecki
35.5%64.5%
KO / TKO
36%
Submission
22%
Decision
42%
Expected fight time: 9.8 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 Duncan, blue toward Rebecki. Tap a bar for why.

Predicted outcomes
Duncan36%
Wins by
Model
Equity
Mkt
KO / TKO13%35%13%
Submission7%20%7%
Decision16%45%13%
Predicted output
Sig. strikes36 (1549)act 92
Takedowns0.8 (0.02.8)act 0
Rebecki64%
Wins by
Model
Equity
Mkt
KO / TKO23%37%32%
Submission15%22%11%
Decision26%41%23%
Predicted output
Sig. strikes35 (1447)act 114
Takedowns1.3 (0.03.9)act 2
Combined totals~70 sig strikes~2.1 takedownsmkt —
How it ends
mkt —
R128%
R221%
R39%
Distance42%
Fighter props
Most sig. strikestie 1.3%
Duncan
50.2%-104
Rebecki
+10448.4%
Most takedownstie 25.6%
Duncan
27.0%+176
Rebecki
-17647.4%
Significant strikes — over/under
Duncan
Expected: 35.8
36
Over 36
38.8%
+154
Exactly 36
1.3%
push
Under 36
59.8%
-154
04590
Rebecki
Expected: 34.6
34.5
Over 34.5
40.0%
+150
Under 34.5
60.0%
-150
04487
Takedowns — over/under
Duncan
Expected: 0.8
1
Over 1
28.8%
+182
Exactly 1
18.9%
push
Under 1
52.3%
-182
035
Rebecki
Expected: 1.3
1.5
Over 1.5
43.3%
+131
Under 1.5
56.7%
-131
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 9.8 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
Duncan35.5%32.1%+3.4+197
Rebecki64.5%67.9%−3.4-249
By method
Duncan by KO/TKO12.9%13.5%−0.6+525
Duncan by submission7.7%7.1%+0.6+1081
Duncan by decision14.9%13.2%+1.7+536
Rebecki by KO/TKO23.4%32.3%−8.9+161
Rebecki by submission14.0%11.0%+3.0+668
Rebecki by decision27.1%22.9%+4.2+268
Total rounds (over)
Over 1.5 rds72.7%59.3%+13.4-175
Over 2.5 rds51.4%42.6%+8.8+120
Goes the distance
Fight goes to decision42.1%37.0%+5.1+153

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
65.6Striking67.7
Rebecki +2.0
59.6Grappling61.9
Rebecki +2.3
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
DuncanRebecki
Tale of the tape
Ratings (Elo)
1575
Pound-for-pound
1591
1576
Divisional
1576
1502
Striking offense
1508
1500
Striking defense
1496
1520
Grappling offense
1525
1498
Grappling defense
1531
Physical
32 yrs
Age
32 yrs
5'10"
Height
5'7"
71"
Reach
66"
Orthodox
Stance
Southpaw
Striking (UFC career)
3.72
Strikes landed / min
4.97
46%
Strike accuracy
49%
2.93
Strikes absorbed / min
4.30
50%
Strike defense
55%
Grappling (UFC career)
4.09
Takedowns / 15 min
3.51
44%
Takedown accuracy
81%
38%
Takedown defense
45%
0.7
Sub attempts / 15 min
0.5
Form & résumé
80%
UFC win rate
80%
+2
Win/loss streak
+1
80%
Last-5 win rate
80%
50%
Finish rate
50%
Recent opp. quality
133
Days since last fight
280
Recent form (last 5 UFC)
Chris Duncan
  • WJordan VucenicSUB R2
    Close +2634mo before
  • WBolaji OkiSUB R1
    Close +14210mo before
  • LManuel TorresSUB R1
    Close +1511y 5mo before
  • WYanal AshmouzU-DEC R3
    Close -1452y before
  • WOmar MoralesS-DEC R3
    Close -1122y 5mo before
Mateusz Rebecki
  • WMyktybek OrolbaiS-DEC R3
    Close +2299mo before
  • LDiego FerreiraKO/TKO R3
    Close -4421y 3mo before
  • WRoosevelt RobertsSUB R1
    Close -9201y 9mo before
  • WLoik RadzhabovKO/TKO R2
    opp missedClose -1312y 1mo before
  • WNick FioreU-DEC R3
    Close -8142y 7mo before
Duncan — win / loss by method
Record: 13-2-0

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, 1 loss
W
54% of wins
L
50% of losses
Submission
3 wins, 1 loss
W
23% of wins
L
50% of losses
Decision
3 wins, 0 losses
W
23% of wins
L
0% of losses
UFC
4win1loss0draw0NC
WinsLosses
0 (0%)KO/TKO(0%) 0
2 (50%)Submission(100%) 1
2 (50%)Decision(0%) 0
Non-UFC
9win1loss0draw0NC
WinsLosses
7 (78%)KO/TKO(100%) 1
1 (11%)Submission(0%) 0
1 (11%)Decision(0%) 0
Rebecki — win / loss by method
Record: 20-2-0

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
9 wins, 2 losses
W
45% of wins
L
100% of losses
Submission
7 wins, 0 losses
W
35% of wins
L
0% of losses
Decision
4 wins, 0 losses
W
20% of wins
L
0% of losses
UFC
4win1loss0draw0NC
WinsLosses
1 (25%)KO/TKO(100%) 1
1 (25%)Submission(0%) 0
2 (50%)Decision(0%) 0
Non-UFC
16win1loss0draw0NC
WinsLosses
8 (50%)KO/TKO(100%) 1
6 (38%)Submission(0%) 0
2 (13%)Decision(0%) 0

Profiles

Experience
Duncan
Rebecki
5
UFC fights
5
44.0 min · 8.8 avg
Octagon time
55.6 min · 11.1 avg
8y 4m
Career length
12y 4m
UFC schedule strength

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

Duncan
Rebecki
54W–9L · 85.7%
Overall
66W–13L · 83.5%
40W–7L · 85.1%
Wins
48W–8L · 85.7%
14W–2L · 87.5%
Losses
18W–5L · 78.3%
Non-UFC schedule strength
Duncan
Rebecki
53W–23L · 69.7%
Overall
166W–55L · 75.1%
49W–22L · 69.0%
Wins
162W–55L · 74.7%
4W–1L · 80.0%
Losses
4W–0L · 100.0%
Distance striking
Duncan
Rebecki
5.35
Landed / min
6.82
43.6%
Accuracy
44.3%
53.4%
Defense
57.7%
0.34
Knockdowns / 15 min
1.08
61.2%
Time at distance
58.0%
Grappling & control
Duncan
Rebecki
4.09
Takedowns / 15 min
3.51
44.4%
Takedown accuracy
81.3%
37.5%
Takedown defense
45.5%
0.68
Sub attempts / 15 min
0.54
86.5%
Control share
77.3%
Strike target map
Duncan
  • Head51%(83)div 63%
  • Body28%(46)div 21%
  • Legs21%(35)div 16%
Rebecki
  • Head62%(170)div 63%
  • Body22%(60)div 21%
  • Legs17%(46)div 16%

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

Chris Duncan
CloseSSTDKDCtrl

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

Mateusz Rebecki
CloseSSTDKDCtrl

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