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UFC 129: St-Pierre vs Shields
Rory MacDonald
Rory MacDonald
10-1 · CAN
VS
Nate Diaz
Nate Diaz
13-6 · USA
April 30, 2011 · Toronto, Ontario, Canada
Welterweight · 3 rounds
170.5lb
Weigh-in
171.0lb
Rory MacDonald def. Nate Diaz by U-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
MacDonald14/381/100:46
Diaz7/220/200:57
R2
MacDonald14/272/501:00
Diaz14/320/100:58
R3
MacDonald14/344/403:27
Diaz5/80/400:34
Total
MacDonald42/997/1005:13
Diaz26/620/702:29

Scorecards

MacDonald vs Diaz

RdClaude PaquetteDouglas CrosbySal D'AmatoCommunity
R1---9.9-9
R2---10-8.9
R3---10-8.5
Total30-2630-2630-2729.9-26.4

Media (5 cards) · avg 3026.8 · 5 MacDonald · 0 Diaz

Official cards + public consensus via MMA Decisions. Per round: MacDonald-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
MacDonaldWin probabilityDiaz
58.5%41.5%
KO / TKO
36%
Submission
9%
Decision
55%
Expected fight time: 11.1 min
What drives the pick

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

Predicted outcomes
MacDonald58%
Wins by
Model
Equity
Mkt
KO / TKO22%39%
Submission4%7%
Decision32%54%
Predicted output
Sig. strikes48 (2763)act 42
Takedowns0.5 (0.01.9)act 7
Diaz42%
Wins by
Model
Equity
Mkt
KO / TKO14%33%
Submission5%11%
Decision23%56%
Predicted output
Sig. strikes40 (2252)act 26
Takedowns0.2 (0.01.0)act 0
Combined totals~88 sig strikes~0.7 takedownsmkt —
How it ends
mkt —
R117%
R223%
R35%
Distance55%
Fighter props
Most sig. strikestie 1.2%
MacDonald
58.5%-145
Diaz
+14540.3%
Most takedownstie 51.8%
MacDonald
32.8%-213
Diaz
+21315.4%
Significant strikes — over/under
MacDonald
Expected: 48.4
48.5
Over 48.5
42.4%
+136
Under 48.5
57.6%
-136
061122
Diaz
Expected: 39.7
39.5
Over 39.5
42.9%
+133
Under 39.5
57.1%
-133
050100
Takedowns — over/under
MacDonald
Expected: 0.5
0.5
Over 0.5
37.8%
+164
Under 0.5
62.2%
-164
035
Diaz
Expected: 0.2
0
Over 0
21.2%
Exactly 0
78.8%
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 11.1 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
MacDonald58.5%56.8%+1.7-137
Diaz41.5%43.2%−1.7+127

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
55.4Striking66.0
Diaz +10.7
84.5Grappling61.5
MacDonald +22.9
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
MacDonaldDiaz
Tale of the tape
Ratings (Elo)
1536
Pound-for-pound
1570
1536
Divisional
1532
1496
Striking offense
1505
1497
Striking defense
1532
1508
Grappling offense
1534
1504
Grappling defense
1490
Physical
21 yrs
Age
26 yrs
6'0"
Height
6'0"
76"
Reach
76"
Orthodox
Stance
Southpaw
Striking (UFC career)
1.91
Strikes landed / min
3.08
42%
Strike accuracy
35%
4.03
Strikes absorbed / min
2.27
59%
Strike defense
63%
Grappling (UFC career)
3.88
Takedowns / 15 min
1.75
45%
Takedown accuracy
36%
100%
Takedown defense
47%
1.6
Sub attempts / 15 min
1.9
Form & résumé
50%
UFC win rate
67%
-1
Win/loss streak
-1
50%
Last-5 win rate
60%
100%
Finish rate
88%
Recent opp. quality
322
Days since last fight
119
Recent form (last 5 UFC)
Rory MacDonald
  • LCarlos ConditKO/TKO R3
    Close -12811mo before
  • WMike GuymonSUB R1
    Close -2131y 4mo before
Nate Diaz
  • LDong Hyun KimU-DEC R3
    Close +1214mo before
  • WMarcus DavisSUB R3
    Close -1908mo before
  • WRory MarkhamKO/TKO R1
    opp missedClose -2351y 1mo before
  • LGray MaynardS-DEC R3
    Close +2561y 4mo before
  • WMelvin GuillardSUB R2
    Close -2381y 7mo before
MacDonald — win / loss by method
Record: 10-1-0

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
4 wins, 1 loss
W
40% of wins
L
100% of losses
Submission
6 wins, 0 losses
W
60% of wins
L
0% of losses
Decision
0 wins, 0 losses
W
0% of wins
L
0% of losses
UFC
1win1loss0draw0NC
WinsLosses
0 (0%)KO/TKO(100%) 1
1 (100%)Submission(0%) 0
0 (0%)Decision(0%) 0
Non-UFC
9win0loss0draw0NC
WinsLosses
4 (44%)KO/TKO() 0
5 (56%)Submission() 0
0 (0%)Decision() 0
Diaz — win / loss by method
Record: 13-6-0

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, 0 losses
W
23% of wins
L
0% of losses
Submission
9 wins, 1 loss
W
69% of wins
L
17% of losses
Decision
1 win, 5 losses
W
8% of wins
L
83% of losses
UFC
8win4loss0draw0NC
WinsLosses
1 (13%)KO/TKO(0%) 0
6 (75%)Submission(0%) 0
1 (13%)Decision(100%) 4
Non-UFC
5win2loss0draw0NC
WinsLosses
2 (40%)KO/TKO(0%) 0
3 (60%)Submission(50%) 1
0 (0%)Decision(50%) 1

Profiles

Experience
MacDonald
Diaz
2
UFC fights
12
19.3 min · 9.7 avg
Octagon time
120.3 min · 10.0 avg
20y 9m
Career length
21y 9m
UFC schedule strength

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

MacDonald
Diaz
35W–7L · 83.3%
Overall
187W–51L · 78.6%
11W–2L · 84.6%
Wins
113W–32L · 77.9%
24W–5L · 82.8%
Losses
74W–19L · 79.6%
Non-UFC schedule strength
MacDonald
Diaz
52W–32L · 61.9%
Overall
53W–19L · 73.6%
52W–32L · 61.9%
Wins
26W–10L · 72.2%
0W–0L
Losses
27W–9L · 75.0%
Distance striking
MacDonald
Diaz
3.50
Landed / min
5.78
36.2%
Accuracy
27.5%
69.8%
Defense
73.0%
0.00
Knockdowns / 15 min
0.25
36.9%
Time at distance
35.2%
Grappling & control
MacDonald
Diaz
3.88
Takedowns / 15 min
1.75
45.5%
Takedown accuracy
35.9%
100.0%
Takedown defense
47.2%
1.55
Sub attempts / 15 min
1.87
61.0%
Control share
33.1%
Strike target map
MacDonald
  • Head78%(29)div 63%
  • Body14%(5)div 21%
  • Legs8%(3)div 16%
Diaz
  • Head71%(262)div 63%
  • Body15%(56)div 21%
  • Legs14%(53)div 16%

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

Rory MacDonald
CloseSSTDKDCtrl

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

Nate Diaz
CloseSSTDKDCtrl

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