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UFC 184: Rousey vs Zingano
Derrick Lewis
Derrick Lewis
11-3 · USA
VS
Ruan Potts
Ruan Potts
8-3 · ZAF
February 28, 2015 · Los Angeles, California, USA
Heavyweight · 3 rounds
262.0lb
Weigh-in
253.0lb
Derrick Lewis def. Ruan Potts by KO/TKO (Punches), R2 3:18
Performance
Round by round
SSTDKDCtrl
R1
Lewis17/310/101:10
Potts7/121/301:40
R2 · 3:18
Lewis36/510/102:58
Potts0/10/000:00
Total
Lewis53/820/204:08
Potts7/131/301:40

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
LewisWin probabilityPotts
79.0%21.0%
KO / TKO
26%
Submission
62%
Decision
12%
Expected fight time: 5.4 min
What drives the pick

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

Predicted outcomes
Lewis79%
Wins by
Model
Equity
Mkt
KO / TKO23%29%
Submission46%59%
Decision10%12%
Predicted output
Sig. strikes25 (1332)act 53
Takedowns0.1 (0.00.4)act 0
Potts21%
Wins by
Model
Equity
Mkt
KO / TKO3%15%
Submission15%73%
Decision3%12%
Predicted output
Sig. strikes17 (922)act 7
Takedowns0.2 (0.00.9)act 1
Combined totals~42 sig strikes~0.3 takedownsmkt —
How it ends
mkt —
R171%
R26%
R311%
Distance12%
Fighter props
Most sig. strikestie 2.4%
Lewis
66.2%-211
Potts
+21131.4%
Most takedownstie 69.2%
Lewis
11.1%+178
Potts
-17819.7%
Significant strikes — over/under
Lewis
Expected: 24.9
25
Over 25
41.0%
+138
Exactly 25
2.6%
push
Under 25
56.4%
-138
03263
Potts
Expected: 16.7
16.5
Over 16.5
43.1%
+132
Under 16.5
56.9%
-132
02142
Takedowns — over/under
Lewis
Expected: 0.1
0
Over 0
13.2%
Exactly 0
86.8%
push
Under 0
0.0%
035
Potts
Expected: 0.2
0
Over 0
21.8%
Exactly 0
78.2%
push
Under 0
0.0%
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 5.4 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
Lewis79.0%85.4%−6.4-705
Potts21.0%14.6%+6.4+570

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
65.0Striking21.3
Lewis +43.8
61.0Grappling29.0
Lewis +32.1
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
LewisPotts
Tale of the tape
Ratings (Elo)
1534
Pound-for-pound
1496
1534
Divisional
1496
1510
Striking offense
1497
1500
Striking defense
1493
1509
Grappling offense
1497
1500
Grappling defense
1487
Physical
30 yrs
Age
37 yrs
6'3"
Height
6'2"
79"
Reach
75"
Orthodox
Stance
Orthodox
Striking (UFC career)
3.39
Strikes landed / min
0.86
66%
Strike accuracy
31%
2.10
Strikes absorbed / min
5.60
28%
Strike defense
8%
Grappling (UFC career)
3.50
Takedowns / 15 min
0.00
67%
Takedown accuracy
0%
67%
Takedown defense
14%
0.0
Sub attempts / 15 min
2.6
Form & résumé
67%
UFC win rate
0%
-1
Win/loss streak
-2
67%
Last-5 win rate
0%
100%
Finish rate
Recent opp. quality
176
Days since last fight
182
Recent form (last 5 UFC)
Derrick Lewis
  • LMatt MitrioneKO/TKO R1
    Close -1266mo before
  • WGuto InocenteKO/TKO R1
    Close -1858mo before
  • WJack MayKO/TKO R1
    Close -29010mo before
Ruan Potts
  • LAnthony HamiltonKO/TKO R2
    Close +2056mo before
  • LSoa PaleleiKO/TKO R1
    Close +28010mo before
Lewis — win / loss by method
Record: 11-3-0, 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
10 wins, 1 loss
W
91% of wins
L
33% of losses
Submission
1 win, 0 losses
W
9% of wins
L
0% of losses
Decision
0 wins, 2 losses
W
0% of wins
L
67% of losses
UFC
2win1loss0draw0NC
WinsLosses
2 (100%)KO/TKO(100%) 1
0 (0%)Submission(0%) 0
0 (0%)Decision(0%) 0
Non-UFC
9win2loss0draw1NC
WinsLosses
8 (89%)KO/TKO(0%) 0
1 (11%)Submission(0%) 0
0 (0%)Decision(100%) 2
Potts — win / loss by method
Record: 8-3-0

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
4 wins, 2 losses
W
50% of wins
L
67% of losses
Submission
4 wins, 0 losses
W
50% of wins
L
0% of losses
Decision
0 wins, 1 loss
W
0% of wins
L
33% of losses
UFC
0win2loss0draw0NC
WinsLosses
0 ()KO/TKO(100%) 2
0 ()Submission(0%) 0
0 ()Decision(0%) 0
Non-UFC
8win1loss0draw0NC
WinsLosses
4 (50%)KO/TKO(0%) 0
4 (50%)Submission(0%) 0
0 (0%)Decision(100%) 1

Profiles

Experience
Lewis
Potts
3
UFC fights
2
8.6 min · 2.9 avg
Octagon time
11.6 min · 5.8 avg
16y 4m
Career length
15y 6m
UFC schedule strength

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

Lewis
Potts
20W–5L · 80.0%
Overall
32W–6L · 84.2%
13W–2L · 86.7%
Wins
0W–0L
7W–3L · 70.0%
Losses
32W–6L · 84.2%
Non-UFC schedule strength
Lewis
Potts
44W–11L · 80.0%
Overall
29W–7L · 80.6%
32W–9L · 78.0%
Wins
23W–6L · 79.3%
12W–2L · 85.7%
Losses
6W–1L · 85.7%
Distance striking
Lewis
Potts
0.84
Landed / min
2.36
20.0%
Accuracy
26.7%
36.4%
Defense
42.9%
0.00
Knockdowns / 15 min
0.00
27.7%
Time at distance
29.1%
Grappling & control
Lewis
Potts
3.50
Takedowns / 15 min
0.00
66.7%
Takedown accuracy
0.0%
66.7%
Takedown defense
14.3%
0.00
Sub attempts / 15 min
2.58
63.0%
Control share
1.5%
Strike target map
Lewis
  • Head93%(27)div 67%
  • Body7%(2)div 18%
  • Legs0%(0)div 15%
Potts
  • Head70%(7)div 67%
  • Body10%(1)div 18%
  • Legs20%(2)div 15%

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

Derrick Lewis
CloseSSTDKDCtrl

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

Ruan Potts
CloseSSTDKDCtrl

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