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UFC 91: Couture vs Lesnar
Demian Maia
Demian Maia
9-0 · BRA
VS
Nate Quarry
Nate Quarry
10-2 · USA
November 15, 2008 · Las Vegas, Nevada, USA
Middleweight · 3 rounds
185.0lb
Weigh-in
185.0lb
Demian Maia def. Nate Quarry by SUB (Rear Naked Choke), R1 2:13
Performance
Round by round
SSTDKDCtrl
R1 · 2:13
Maia2/41/201:45
Quarry0/00/000:06
Total
Maia2/41/201:45
Quarry0/00/000:06

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
MaiaWin probabilityQuarry
82.9%17.1%
KO / TKO
16%
Submission
34%
Decision
51%
Expected fight time: 9.4 min
What drives the pick

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

Predicted outcomes
Maia83%
Wins by
Model
Equity
Mkt
KO / TKO10%13%
Submission31%37%
Decision42%50%
Predicted output
Sig. strikes23 (1230)act 2
Takedowns1.8 (0.04.2)act 1
Quarry17%
Wins by
Model
Equity
Mkt
KO / TKO5%30%
Submission3%17%
Decision9%53%
Predicted output
Sig. strikes28 (1637)act 0
Takedowns0.0 (0.00.0)act 0
Combined totals~52 sig strikes~1.8 takedownsmkt —
How it ends
mkt —
R142%
R23%
R34%
Distance51%
Fighter props
Most sig. strikestie 2.0%
Maia
39.8%+146
Quarry
-14658.1%
Most takedownstie 19.5%
Maia
78.7%-4401
Quarry
+44011.8%
Significant strikes — over/under
Maia
Expected: 23.2
23
Over 23
41.7%
+133
Exactly 23
2.8%
push
Under 23
55.5%
-133
03059
Quarry
Expected: 28.5
28.5
Over 28.5
42.4%
+136
Under 28.5
57.6%
-136
03672
Takedowns — over/under
Maia
Expected: 1.8
2
Over 2
35.5%
+122
Exactly 2
21.2%
push
Under 2
43.3%
-122
036
Quarry
Expected: 0.0
0
Over 0
6.3%
Exactly 0
93.7%
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 9.4 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
Maia82.9%67.5%+15.4-238
Quarry17.1%32.5%−15.4+195

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
72.8Striking81.5
Quarry +8.7
76.2Grappling15.9
Maia +60.3
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
MaiaQuarry
Tale of the tape
Ratings (Elo)
1568
Pound-for-pound
1574
1568
Divisional
1571
Striking offense
Striking defense
1555
Grappling offense
1487
1533
Grappling defense
1510
Physical
31 yrs
Age
36 yrs
6'1"
Height
6'0"
72"
Reach
72"
Southpaw
Stance
Open Stance
Striking (UFC career)
2.10
Strikes landed / min
6.02
58%
Strike accuracy
48%
1.05
Strikes absorbed / min
2.75
52%
Strike defense
64%
Grappling (UFC career)
3.28
Takedowns / 15 min
0.00
36%
Takedown accuracy
0%
67%
Takedown defense
57%
4.6
Sub attempts / 15 min
0.0
Form & résumé
100%
UFC win rate
83%
+3
Win/loss streak
+2
100%
Last-5 win rate
80%
100%
Finish rate
80%
Recent opp. quality
98
Days since last fight
210
Recent form (last 5 UFC)
Demian Maia
  • WJason MacDonaldSUB R3
    Close -2463mo before
  • WEd HermanSUB R2
    Close -1807mo before
  • WRyan JensenSUB R1
    Close -1981y 1mo before
Nate Quarry
  • WKalib StarnesU-DEC R3
    Close -2557mo before
  • WPete SellKO/TKO R3
    Close -2301y 2mo before
  • LRich FranklinKO/TKO R1
    Close +2603y before
  • WPete SellKO/TKO R1
    3y 3mo before
  • WShonie CarterKO/TKO R1
    3y 5mo before
Maia — win / loss by method
Record: 9-0-0

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
22% of wins
L
Submission
6 wins, 0 losses
W
67% of wins
L
Decision
1 win, 0 losses
W
11% of wins
L
UFC
3win0loss0draw0NC
WinsLosses
0 (0%)KO/TKO() 0
3 (100%)Submission() 0
0 (0%)Decision() 0
Non-UFC
6win0loss0draw0NC
WinsLosses
2 (33%)KO/TKO() 0
3 (50%)Submission() 0
1 (17%)Decision() 0
Quarry — win / loss by method
Record: 10-2-0

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
6 wins, 1 loss
W
60% of wins
L
50% of losses
Submission
2 wins, 0 losses
W
20% of wins
L
0% of losses
Decision
2 wins, 1 loss
W
20% of wins
L
50% of losses
UFC
5win1loss0draw0NC
WinsLosses
4 (80%)KO/TKO(100%) 1
0 (0%)Submission(0%) 0
1 (20%)Decision(0%) 0
Non-UFC
5win1loss0draw0NC
WinsLosses
2 (40%)KO/TKO(0%) 0
2 (40%)Submission(0%) 0
1 (20%)Decision(100%) 1

Profiles

Experience
Maia
Quarry
3
UFC fights
6
22.9 min · 7.6 avg
Octagon time
34.9 min · 5.8 avg
24y 10m
Career length
24y 11m
UFC schedule strength

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

Maia
Quarry
47W–16L · 74.6%
Overall
82W–18L · 82.0%
47W–16L · 74.6%
Wins
62W–17L · 78.5%
0W–0L
Losses
20W–1L · 95.2%
Non-UFC schedule strength
Maia
Quarry
38W–15L · 71.7%
Overall
20W–12L · 62.5%
38W–15L · 71.7%
Wins
15W–11L · 57.7%
0W–0L
Losses
5W–1L · 83.3%
Distance striking
Maia
Quarry
3.85
Landed / min
6.37
46.2%
Accuracy
45.6%
81.8%
Defense
69.5%
0.00
Knockdowns / 15 min
1.72
6.8%
Time at distance
75.2%
Grappling & control
Maia
Quarry
3.28
Takedowns / 15 min
0.00
35.7%
Takedown accuracy
0.0%
66.7%
Takedown defense
57.1%
4.60
Sub attempts / 15 min
0.00
56.6%
Control share
19.7%
Strike target map
Maia
  • Head81%(39)div 63%
  • Body13%(6)div 20%
  • Legs6%(3)div 17%
Quarry
  • Head50%(106)div 63%
  • Body20%(41)div 20%
  • Legs30%(63)div 17%

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

Demian Maia
CloseSSTDKDCtrl

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

Nate Quarry
CloseSSTDKDCtrl

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