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UFC 221: Romero vs. Rockhold
Dong Hyun Ma
Dong Hyun Ma
15-8-3 · KOR
VS
Damien Brown
Damien Brown
17-11 · AUS
February 10, 2018 · Perth, Western Australia, Australia
Lightweight · 3 rounds
Dong Hyun Ma def. Damien Brown by S-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
Hyun Ma22/490/000:00
Brown11/270/000:00
R2
Hyun Ma23/490/000:00
Brown15/350/000:00
R3
Hyun Ma22/550/000:00
Brown20/610/000:00
Total
Hyun Ma67/1530/000:00
Brown46/1230/000:00

Scorecards

Hyun Ma vs Brown

RdAdam MetcalfBarry FoleyEvan FieldCommunity
R1---9.5-9.5
R2---9.9-9.1
R3---9.6-9.4
Total29-2828-2929-2829-28

Media (16 cards) · avg 29.227.8 · 16 Hyun Ma · 0 Brown

Official cards + public consensus via MMA Decisions. Per round: Hyun Ma-Brown.

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
Hyun MaWin probabilityBrown
52.2%47.8%
KO / TKO
30%
Submission
22%
Decision
49%
Expected fight time: 10.2 min
What drives the pick

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

Predicted outcomes
Hyun Ma52%
Wins by
Model
Equity
Mkt
KO / TKO18%35%
Submission11%20%
Decision23%45%
Predicted output
Sig. strikes43 (2456)act 67
Takedowns0.7 (0.02.4)act 0
Brown48%
Wins by
Model
Equity
Mkt
KO / TKO12%24%
Submission11%23%
Decision25%53%
Predicted output
Sig. strikes43 (2455)act 46
Takedowns0.4 (0.01.8)act 0
Combined totals~86 sig strikes~1.1 takedownsmkt —
How it ends
mkt —
R130%
R211%
R310%
Distance49%
Fighter props
Most sig. strikestie 1.3%
Hyun Ma
49.8%-102
Brown
+10248.9%
Most takedownstie 45.8%
Hyun Ma
31.9%-143
Brown
+14322.3%
Significant strikes — over/under
Hyun Ma
Expected: 43.1
43
Over 43
41.8%
+135
Exactly 43
1.5%
push
Under 43
56.6%
-135
054108
Brown
Expected: 42.6
42.5
Over 42.5
42.7%
+134
Under 42.5
57.3%
-134
054107
Takedowns — over/under
Hyun Ma
Expected: 0.7
0.5
Over 0.5
39.0%
+156
Under 0.5
61.0%
-156
035
Brown
Expected: 0.4
0.5
Over 0.5
30.3%
+230
Under 0.5
69.7%
-230
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 10.2 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
Hyun Ma52.2%55.3%−3.1-135
Brown47.8%44.7%+3.1+115

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
56.2Striking53.8
Hyun Ma +2.4
45.9Grappling42.8
Hyun Ma +3.1
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
Hyun MaBrown
Tale of the tape
Ratings (Elo)
1511
Pound-for-pound
1491
1525
Divisional
1491
1502
Striking offense
1506
1492
Striking defense
1488
Grappling offense
Grappling defense
Physical
29 yrs
Age
33 yrs
5'11"
Height
5'10"
70"
Reach
68"
Orthodox
Stance
Orthodox
Striking (UFC career)
3.50
Strikes landed / min
3.84
47%
Strike accuracy
39%
5.10
Strikes absorbed / min
4.97
51%
Strike defense
48%
Grappling (UFC career)
2.32
Takedowns / 15 min
0.88
60%
Takedown accuracy
27%
33%
Takedown defense
54%
0.0
Sub attempts / 15 min
0.9
Form & résumé
50%
UFC win rate
40%
+2
Win/loss streak
-2
50%
Last-5 win rate
40%
50%
Finish rate
50%
Recent opp. quality
141
Days since last fight
84
Recent form (last 5 UFC)
Dong Hyun Ma
  • WTakanori GomiKO/TKO R1
    Close -3505mo before
  • WBrendan O'ReillyU-DEC R3
    Close -1501y 2mo before
  • LMarco Polo ReyesKO/TKO R3
    Close -1051y 8mo before
  • LDominique SteeleKO/TKO R3
    Close +1102y 2mo before
Damien Brown
  • LFrank CamachoS-DEC R3
    Close +1053mo before
  • LVinc PichelKO/TKO R1
    Close +1058mo before
  • WJon TuckS-DEC R3
    Close +1301y 2mo before
  • WCesar ArzamendiaKO/TKO R1
    Close -1151y 6mo before
  • LAlan PatrickU-DEC R3
    Close +2501y 11mo before
Hyun Ma — win / loss by method
Record: 15-8-3

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, 2 losses
W
40% of wins
L
25% of losses
Submission
6 wins, 2 losses
W
40% of wins
L
25% of losses
Decision
3 wins, 4 losses
W
20% of wins
L
50% of losses
UFC
2win2loss0draw0NC
WinsLosses
1 (50%)KO/TKO(100%) 2
0 (0%)Submission(0%) 0
1 (50%)Decision(0%) 0
Non-UFC
13win6loss3draw0NC
WinsLosses
5 (38%)KO/TKO(0%) 0
6 (46%)Submission(33%) 2
2 (15%)Decision(67%) 4
Brown — win / loss by method
Record: 17-11-0

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
3 wins, 2 losses
W
18% of wins
L
18% of losses
Submission
8 wins, 4 losses
W
47% of wins
L
36% of losses
Decision
6 wins, 5 losses
W
35% of wins
L
45% of losses
UFC
2win3loss0draw0NC
WinsLosses
1 (50%)KO/TKO(33%) 1
0 (0%)Submission(0%) 0
1 (50%)Decision(67%) 2
Non-UFC
15win8loss0draw0NC
WinsLosses
2 (13%)KO/TKO(13%) 1
8 (53%)Submission(50%) 4
5 (33%)Decision(38%) 3

Profiles

Experience
Hyun Ma
Brown
4
UFC fights
5
38.8 min · 9.7 avg
Octagon time
51.1 min · 10.2 avg
19y 5m
Career length
16y 1m
UFC schedule strength

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

Hyun Ma
Brown
63W–24L · 72.4%
Overall
58W–12L · 82.9%
39W–15L · 72.2%
Wins
16W–5L · 76.2%
24W–9L · 72.7%
Losses
42W–7L · 85.7%
Non-UFC schedule strength
Hyun Ma
Brown
109W–84L · 56.5%
Overall
106W–44L · 70.7%
49W–41L · 54.4%
Wins
59W–29L · 67.0%
60W–43L · 58.3%
Losses
47W–15L · 75.8%
Distance striking
Hyun Ma
Brown
7.33
Landed / min
5.99
40.8%
Accuracy
35.9%
57.1%
Defense
52.5%
0.39
Knockdowns / 15 min
0.59
30.6%
Time at distance
53.0%
Grappling & control
Hyun Ma
Brown
2.32
Takedowns / 15 min
0.88
60.0%
Takedown accuracy
27.3%
33.3%
Takedown defense
53.8%
0.00
Sub attempts / 15 min
0.88
53.0%
Control share
16.4%
Strike target map
Hyun Ma
  • Head74%(100)div 63%
  • Body15%(21)div 20%
  • Legs11%(15)div 17%
Brown
  • Head73%(143)div 63%
  • Body13%(26)div 20%
  • Legs14%(27)div 17%

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

Dong Hyun Ma
CloseSSTDKDCtrl

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

Damien Brown
CloseSSTDKDCtrl

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