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UFC 158: St-Pierre vs Diaz
VS
Nick Diaz
Nick Diaz
26-8 · USA
March 16, 2013 · Montreal, Quebec, Canada
Welterweight · 5 rounds · Main event
170.0lb
Weigh-in
169.0lb
Georges St-Pierre def. Nick Diaz by U-DEC, R5 5:00
Performance
Round by round
SSTDKDCtrl
R1
St-Pierre12/213/304:50
Diaz1/40/000:00
R2
St-Pierre18/291/103:17
Diaz3/200/000:00
R3
St-Pierre28/542/501:29
Diaz15/420/000:00
R4
St-Pierre24/312/502:12
Diaz11/380/000:00
R5
St-Pierre23/321/201:56
Diaz11/320/000:36
Total
St-Pierre105/1679/16013:44
Diaz41/1360/000:36

Scorecards

St-Pierre vs Diaz

RdDavid TherienRichard BertrandSal D'AmatoCommunity
R110-910-910-99.9-8.9
R210-910-910-99.9-9
R310-910-910-99.8-9.2
R410-910-910-99.9-9.1
R510-910-910-99.9-9.1
Total50-4550-4550-4549.4-45.3

Media (10 cards) · avg 5045 · 10 St-Pierre · 0 Diaz

Official cards + public consensus via MMA Decisions. Per round: St-Pierre-Diaz.

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
St-PierreWin probabilityDiaz
64.7%35.3%
KO / TKO
41%
Submission
2%
Decision
56%
Expected fight time: 18.7 min
What drives the pick

Each bar is a feature's push on the model from the center axis. Red pushes toward St-Pierre, blue toward Diaz. Tap a bar for why.

Predicted outcomes
St-Pierre65%
Wins by
Model
Equity
Mkt
KO / TKO22%34%
Submission1%2%
Decision42%64%
Predicted output
Sig. strikes87 (50113)act 105
Takedowns2.7 (0.15.6)act 9
Diaz35%
Wins by
Model
Equity
Mkt
KO / TKO19%54%
Submission1%3%
Decision15%43%
Predicted output
Sig. strikes40 (2252)act 41
Takedowns0.0 (0.00.0)act 0
Combined totals~127 sig strikes~2.7 takedownsmkt —
How it ends
mkt —
R18%
R219%
R39%
R45%
R53%
Distance56%
Fighter props
Most sig. strikestie 0.7%
St-Pierre
80.9%-438
Diaz
+43818.5%
Most takedownstie 9.1%
St-Pierre
89.7%-7776
Diaz
+77761.2%
Significant strikes — over/under
St-Pierre
Expected: 86.5
86.5
Over 86.5
42.5%
+135
Under 86.5
57.5%
-135
0109217
Diaz
Expected: 40.3
40.5
Over 40.5
42.2%
+137
Under 40.5
57.8%
-137
051101
Takedowns — over/under
St-Pierre
Expected: 2.7
2.5
Over 2.5
52.1%
-109
Under 2.5
47.9%
+109
059
Diaz
Expected: 0.0
0
Over 0
7.1%
Exactly 0
92.9%
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 18.7 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
St-Pierre64.7%82.7%−18.0-545
Diaz35.3%17.3%+18.0+465

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
81.6Striking69.2
St-Pierre +12.4
84.5Grappling58.1
St-Pierre +26.4
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
St-PierreDiaz
Tale of the tape
Ratings (Elo)
1734
Pound-for-pound
1550
1724
Divisional
1546
1524
Striking offense
1512
1580
Striking defense
1538
1554
Grappling offense
1508
1603
Grappling defense
1512
Physical
31 yrs
Age
29 yrs
5'11"
Height
6'1"
76"
Reach
76"
Orthodox
Stance
Southpaw
Striking (UFC career)
3.77
Strikes landed / min
4.20
53%
Strike accuracy
43%
1.23
Strikes absorbed / min
3.14
76%
Strike defense
60%
Grappling (UFC career)
4.04
Takedowns / 15 min
1.46
78%
Takedown accuracy
36%
88%
Takedown defense
68%
1.2
Sub attempts / 15 min
1.3
Form & résumé
89%
UFC win rate
58%
+10
Win/loss streak
-1
100%
Last-5 win rate
60%
41%
Finish rate
86%
Recent opp. quality
119
Days since last fight
406
Recent form (last 5 UFC)
Georges St-Pierre
  • WCarlos ConditU-DEC R5
    Close -3004mo before
  • WJake ShieldsU-DEC R5
    Close -4551y 11mo before
  • WJosh KoscheckU-DEC R5
    Close -4402y 3mo before
  • WDan HardyU-DEC R5
    Close -6503y before
  • WThiago AlvesU-DEC R5
    Close -2483y 8mo before
Nick Diaz
  • LCarlos ConditU-DEC R5
    Close -1901y 1mo before
  • WBJ PennU-DEC R3
    Close -1151y 5mo before
  • WGleison TibauKO/TKO R2
    6y 4mo before
  • WJosh NeerSUB R3
    Close -2006y 7mo before
  • LSean SherkU-DEC R3
    Close +1506y 11mo before
St-Pierre — win / loss by method
Record: 23-2-0

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
8 wins, 1 loss
W
35% of wins
L
50% of losses
Submission
5 wins, 1 loss
W
22% of wins
L
50% of losses
Decision
10 wins, 0 losses
W
43% of wins
L
0% of losses
UFC
17win2loss0draw0NC
WinsLosses
5 (29%)KO/TKO(50%) 1
2 (12%)Submission(50%) 1
10 (59%)Decision(0%) 0
Non-UFC
6win0loss0draw0NC
WinsLosses
3 (50%)KO/TKO() 0
3 (50%)Submission() 0
0 (0%)Decision() 0
Diaz — win / loss by method
Record: 26-8-0, 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
13 wins, 2 losses
W
50% of wins
L
25% of losses
Submission
8 wins, 0 losses
W
31% of wins
L
0% of losses
Decision
5 wins, 6 losses
W
19% of wins
L
75% of losses
UFC
7win5loss0draw0NC
WinsLosses
4 (57%)KO/TKO(0%) 0
2 (29%)Submission(0%) 0
1 (14%)Decision(100%) 5
Non-UFC
19win3loss0draw1NC
WinsLosses
9 (47%)KO/TKO(67%) 2
6 (32%)Submission(0%) 0
4 (21%)Decision(33%) 1

Profiles

Experience
St-Pierre
Diaz
19
UFC fights
12
278.2 min · 14.6 avg
Octagon time
143.8 min · 12.0 avg
24y 6m
Career length
24y 11m
UFC schedule strength

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

St-Pierre
Diaz
365W–63L · 85.3%
Overall
201W–38L · 84.1%
320W–55L · 85.3%
Wins
96W–22L · 81.4%
45W–8L · 84.9%
Losses
105W–16L · 86.8%
Non-UFC schedule strength
St-Pierre
Diaz
56W–21L · 72.7%
Overall
247W–99L · 71.4%
56W–21L · 72.7%
Wins
236W–94L · 71.5%
0W–0L
Losses
11W–5L · 68.8%
Distance striking
St-Pierre
Diaz
4.95
Landed / min
6.35
44.2%
Accuracy
38.6%
79.9%
Defense
60.9%
0.43
Knockdowns / 15 min
0.31
41.4%
Time at distance
45.8%
Grappling & control
St-Pierre
Diaz
4.04
Takedowns / 15 min
1.46
78.1%
Takedown accuracy
35.9%
88.0%
Takedown defense
67.7%
1.19
Sub attempts / 15 min
1.25
91.5%
Control share
45.4%
Strike target map
St-Pierre
  • Head66%(693)div 63%
  • Body18%(192)div 22%
  • Legs16%(163)div 16%
Diaz
  • Head72%(433)div 63%
  • Body24%(146)div 22%
  • Legs4%(25)div 16%

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

Georges St-Pierre
CloseSSTDKDCtrl

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

Nick Diaz
CloseSSTDKDCtrl

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