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UFC 230: Cormier vs. Lewis
Karl Roberson
Karl Roberson
6-1 · USA
VS
Jack Marshman
Jack Marshman
22-7 · GBR
November 3, 2018 · New York City, New York, USA
Middleweight · 3 rounds
Karl Roberson def. Jack Marshman by U-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
Roberson15/320/100:18
Marshman13/520/000:00
R2
Roberson8/201/102:15
Marshman8/310/000:00
R3
Roberson11/191/102:33
Marshman0/150/000:00
Total
Roberson34/712/305:06
Marshman21/980/000:00

Scorecards

Roberson vs Marshman

RdChris LeeDouglas CrosbySal D'AmatoCommunity
R110-910-910-910-8.9
R210-910-910-910-9
R310-810-910-810-8.9
Total30-2630-2730-2630-26.8

Media (19 cards) · avg 3026.9 · 19 Roberson · 0 Marshman

Official cards + public consensus via MMA Decisions. Per round: Roberson-Marshman.

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
RobersonWin probabilityMarshman
69.0%31.0%
KO / TKO
27%
Submission
13%
Decision
60%
Expected fight time: 11.4 min
What drives the pick

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

Predicted outcomes
Roberson69%
Wins by
Model
Equity
Mkt
KO / TKO15%23%
Submission10%14%
Decision44%63%
Predicted output
Sig. strikes42 (2355)act 34
Takedowns0.7 (0.02.5)act 2
Marshman31%
Wins by
Model
Equity
Mkt
KO / TKO12%38%
Submission3%10%
Decision16%52%
Predicted output
Sig. strikes31 (1741)act 21
Takedowns0.3 (0.01.1)act 0
Combined totals~73 sig strikes~0.9 takedownsmkt —
How it ends
mkt —
R119%
R214%
R37%
Distance60%
Fighter props
Most sig. strikestie 1.4%
Roberson
62.4%-173
Marshman
+17336.2%
Most takedownstie 53.3%
Roberson
32.9%-238
Marshman
+23813.8%
Significant strikes — over/under
Roberson
Expected: 42.0
42
Over 42
41.7%
+136
Exactly 42
1.6%
push
Under 42
56.7%
-136
053105
Marshman
Expected: 31.4
31.5
Over 31.5
42.3%
+136
Under 31.5
57.7%
-136
04079
Takedowns — over/under
Roberson
Expected: 0.7
0.5
Over 0.5
36.9%
+171
Under 0.5
63.1%
-171
035
Marshman
Expected: 0.3
0.5
Over 0.5
18.4%
+442
Under 0.5
81.6%
-442
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 11.4 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
Roberson69.0%73.6%−4.6-325
Marshman31.0%26.4%+4.6+265

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
76.3Striking56.2
Roberson +20.2
72.8Grappling4.6
Roberson +68.2
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
RobersonMarshman
Tale of the tape
Ratings (Elo)
1518
Pound-for-pound
1535
1519
Divisional
1535
1497
Striking offense
1497
1529
Striking defense
1502
1498
Grappling offense
1463
1500
Grappling defense
1496
Physical
28 yrs
Age
28 yrs
6'1"
Height
6'0"
74"
Reach
73"
Southpaw
Stance
Orthodox
Striking (UFC career)
2.49
Strikes landed / min
3.49
72%
Strike accuracy
34%
1.30
Strikes absorbed / min
4.42
58%
Strike defense
58%
Grappling (UFC career)
1.78
Takedowns / 15 min
0.00
100%
Takedown accuracy
50%
Takedown defense
17%
3.6
Sub attempts / 15 min
0.0
Form & résumé
50%
UFC win rate
50%
-1
Win/loss streak
-1
50%
Last-5 win rate
50%
100%
Finish rate
50%
Recent opp. quality
175
Days since last fight
371
Recent form (last 5 UFC)
Karl Roberson
  • LCezar FerreiraSUB R1
    Close +1306mo before
  • WDarren StewartSUB R1
    Close -2551y before
Jack Marshman
  • LAntonio Carlos JuniorSUB R1
    Close +3301y before
  • WRyan JanesU-DEC R3
    Close -5001y 4mo before
  • LThiago SantosKO/TKO R2
    Close +1451y 8mo before
  • WMagnus CedenbladKO/TKO R2
    Close +2101y 11mo before
Roberson — win / loss by method
Record: 6-1-0

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, 0 losses
W
33% of wins
L
0% of losses
Submission
3 wins, 1 loss
W
50% of wins
L
100% of losses
Decision
1 win, 0 losses
W
17% of wins
L
0% of losses
UFC
1win1loss0draw0NC
WinsLosses
0 (0%)KO/TKO(0%) 0
1 (100%)Submission(100%) 1
0 (0%)Decision(0%) 0
Non-UFC
5win0loss0draw0NC
WinsLosses
2 (40%)KO/TKO() 0
2 (40%)Submission() 0
1 (20%)Decision() 0
Marshman — win / loss by method
Record: 22-7-0

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
13 wins, 4 losses
W
59% of wins
L
57% of losses
Submission
5 wins, 1 loss
W
23% of wins
L
14% of losses
Decision
4 wins, 2 losses
W
18% of wins
L
29% of losses
UFC
2win2loss0draw0NC
WinsLosses
1 (50%)KO/TKO(50%) 1
0 (0%)Submission(50%) 1
1 (50%)Decision(0%) 0
Non-UFC
20win5loss0draw0NC
WinsLosses
12 (60%)KO/TKO(60%) 3
5 (25%)Submission(0%) 0
3 (15%)Decision(40%) 2

Profiles

Experience
Roberson
Marshman
2
UFC fights
4
8.4 min · 4.2 avg
Octagon time
35.5 min · 8.9 avg
11y 2m
Career length
16y 6m
UFC schedule strength

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

Roberson
Marshman
19W–7L · 73.1%
Overall
44W–13L · 77.2%
7W–1L · 87.5%
Wins
23W–6L · 79.3%
12W–6L · 66.7%
Losses
21W–7L · 75.0%
Non-UFC schedule strength
Roberson
Marshman
25W–10L · 71.4%
Overall
265W–232L · 53.3%
25W–10L · 71.4%
Wins
208W–205L · 50.4%
0W–0L
Losses
57W–27L · 67.9%
Distance striking
Roberson
Marshman
3.74
Landed / min
4.77
50.0%
Accuracy
32.2%
73.7%
Defense
62.2%
0.00
Knockdowns / 15 min
1.27
19.0%
Time at distance
65.5%
Grappling & control
Roberson
Marshman
1.78
Takedowns / 15 min
0.00
100.0%
Takedown accuracy
50.0%
Takedown defense
16.7%
3.56
Sub attempts / 15 min
0.00
20.1%
Control share
2.4%
Strike target map
Roberson
  • Head71%(15)div 63%
  • Body24%(5)div 19%
  • Legs5%(1)div 18%
Marshman
  • Head76%(94)div 63%
  • Body15%(19)div 19%
  • Legs9%(11)div 18%

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

Karl Roberson
CloseSSTDKDCtrl

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

Jack Marshman
CloseSSTDKDCtrl

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