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UFC 124: St-Pierre vs Koscheck 2
Sean Pierson
Sean Pierson
10-4 · CAN
VS
Matthew Riddle
Matthew Riddle
5-1 · USA
December 11, 2010 · Montreal, Quebec, Canada
Welterweight · 3 rounds
170.5lb
Weigh-in
170.5lb
Sean Pierson def. Matthew Riddle by U-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
Pierson48/811/112:31
Riddle5/530/000:00
R2
Pierson25/610/100:29
Riddle11/720/100:45
R3
Pierson39/1110/100:42
Riddle19/1330/100:00
Total
Pierson112/2531/313:42
Riddle35/2580/200:45

Scorecards

Pierson vs Riddle

RdDavid TherienNelson HamiltonSal D'AmatoCommunity
R110-910-910-910-8.6
R210-910-910-99.2-9.8
R310-910-910-910-9
Total30-2730-2730-2729.2-27.4

Media (3 cards) · avg 3026.3 · 3 Pierson · 0 Riddle

Official cards + public consensus via MMA Decisions. Per round: Pierson-Riddle.

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
PiersonWin probabilityRiddle
17.9%82.1%
KO / TKO
18%
Submission
9%
Decision
73%
Expected fight time: 12.6 min
What drives the pick

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

Predicted outcomes
Pierson18%
Wins by
Model
Equity
Mkt
KO / TKO5%28%
Submission4%23%
Decision9%49%
Predicted output
Sig. strikes33 (1843)act 112
Takedowns0.2 (0.00.5)act 1
Riddle82%
Wins by
Model
Equity
Mkt
KO / TKO13%16%
Submission5%6%
Decision64%78%
Predicted output
Sig. strikes38 (2149)act 35
Takedowns2.2 (0.05.3)act 0
Combined totals~71 sig strikes~2.4 takedownsmkt —
How it ends
mkt —
R113%
R29%
R35%
Distance73%
Fighter props
Most sig. strikestie 1.5%
Pierson
43.4%+127
Riddle
-12755.1%
Most takedownstie 24.6%
Pierson
5.2%+1344
Riddle
-134470.1%
Significant strikes — over/under
Pierson
Expected: 33.4
33.5
Over 33.5
42.3%
+136
Under 33.5
57.7%
-136
04284
Riddle
Expected: 37.9
38
Over 38
41.5%
+137
Exactly 38
1.7%
push
Under 38
56.7%
-137
04895
Takedowns — over/under
Pierson
Expected: 0.2
0
Over 0
13.3%
Exactly 0
86.7%
push
Under 0
0.0%
035
Riddle
Expected: 2.2
2
Over 2
42.8%
-104
Exactly 2
16.1%
push
Under 2
41.1%
+104
047

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 12.6 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
Pierson17.9%31.1%−13.2+210
Riddle82.1%68.9%+13.2-250

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
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
PiersonRiddle
Tale of the tape
Ratings (Elo)
1509
Pound-for-pound
1561
1509
Divisional
1548
1482
Striking offense
1477
1500
Striking defense
1511
1561
Grappling offense
1526
1558
Grappling defense
1519
Physical
34 yrs
Age
24 yrs
6'0"
Height
6'1"
76"
Reach
76"
Southpaw
Stance
Southpaw
Striking (UFC career)
Strikes landed / min
3.41
Strike accuracy
60%
Strikes absorbed / min
1.72
Strike defense
53%
Grappling (UFC career)
Takedowns / 15 min
4.13
Takedown accuracy
52%
Takedown defense
93%
Sub attempts / 15 min
0.8
Form & résumé
UFC win rate
83%
Win/loss streak
+2
Last-5 win rate
80%
Finish rate
20%
Recent opp. quality
Days since last fight
132
Recent form (last 5 UFC)
Sean Pierson
No prior UFC fights.
Matthew Riddle
  • WDaMarques JohnsonKO/TKO R2
    opp missedClose -2204mo before
  • WGreg SotoDQ R3
    Close -2309mo before
  • LNick OsipczakKO/TKO R3
    Close -3081y 1mo before
  • WDan CramerU-DEC R3
    Close -2281y 4mo before
  • WSteve BrunoU-DEC R3
    Close -1451y 10mo before
Pierson — win / loss by method
Record: 10-4-0

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, 2 losses
W
60% of wins
L
50% of losses
Submission
4 wins, 1 loss
W
40% of wins
L
25% of losses
Decision
0 wins, 1 loss
W
0% of wins
L
25% of losses
UFC
0win0loss0draw0NC
WinsLosses
0 ()KO/TKO() 0
0 ()Submission() 0
0 ()Decision() 0
Non-UFC
10win4loss0draw0NC
WinsLosses
6 (60%)KO/TKO(50%) 2
4 (40%)Submission(25%) 1
0 (0%)Decision(25%) 1
Riddle — win / loss by method
Record: 5-1-0

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
1 win, 1 loss
W
20% of wins
L
100% of losses
Submission
0 wins, 0 losses
W
0% of wins
L
0% of losses
Decision
3 wins, 0 losses
W
60% of wins
L
0% of losses
DQ / other
1 win, 0 losses
W
20% of wins
L
0% of losses
UFC
5win1loss0draw0NC
WinsLosses
1 (20%)KO/TKO(100%) 1
0 (0%)Submission(0%) 0
3 (60%)Decision(0%) 0
1 (20%)DQ / other(0%) 0
Non-UFC
0win0loss0draw0NC
WinsLosses
0 ()KO/TKO() 0
0 ()Submission() 0
0 ()Decision() 0

Profiles

Experience
Pierson
Riddle
0
UFC fights
6
Octagon time
79.9 min · 13.3 avg
Career length
18y 1m
UFC schedule strength

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

Pierson
Riddle
Overall
48W–14L · 77.4%
Wins
44W–14L · 75.9%
Losses
4W–0L · 100.0%
Non-UFC schedule strength
Pierson
Riddle
65W–45L · 59.1%
Overall
35W–32L · 52.2%
Wins
30W–13L · 69.8%
Losses
Distance striking
Pierson
Riddle
Landed / min
2.91
Accuracy
27.9%
Defense
63.0%
Knockdowns / 15 min
0.00
Time at distance
12.5%
Grappling & control
Pierson
Riddle
Takedowns / 15 min
4.13
Takedown accuracy
52.4%
Takedown defense
92.9%
Sub attempts / 15 min
0.75
Control share
84.0%
Strike target map
Pierson
  • Head0%(0)div 63%
  • Body0%(0)div 22%
  • Legs0%(0)div 16%
  • No strike data on record.
Riddle
  • Head45%(123)div 63%
  • Body31%(85)div 22%
  • Legs24%(64)div 16%

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

Sean Pierson

No UFC fights on record.

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

Matthew Riddle
CloseSSTDKDCtrl

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