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UFC 83: Serra vs St-Pierre 2
Jason MacDonald
Jason MacDonald
19-9 · CAN
VS
Joe Doerksen
Joe Doerksen
39-11 · CAN
April 19, 2008 · Montreal, Quebec, Canada
Middleweight · 3 rounds
185.0lb
Weigh-in
184.5lb
Jason MacDonald def. Joe Doerksen by KO/TKO (Elbows), R2 0:54
Performance
Round by round
SSTDKDCtrl
R1
MacDonald4/51/200:57
Doerksen2/40/003:45
R2 · 0:54
MacDonald9/120/000:35
Doerksen2/21/100:03
Total
MacDonald13/171/201:32
Doerksen4/61/103:48

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 probabilityDoerksen
25.5%74.5%
KO / TKO
27%
Submission
48%
Decision
25%
Expected fight time: 7.0 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 Doerksen. Tap a bar for why.

Predicted outcomes
MacDonald25%
Wins by
Model
Equity
Mkt
KO / TKO7%26%
Submission12%48%
Decision6%26%
Predicted output
Sig. strikes19 (1025)act 13
Takedowns0.6 (0.02.2)act 1
Doerksen75%
Wins by
Model
Equity
Mkt
KO / TKO21%27%
Submission36%48%
Decision18%25%
Predicted output
Sig. strikes19 (1025)act 4
Takedowns0.7 (0.02.5)act 1
Combined totals~38 sig strikes~1.2 takedownsmkt —
How it ends
mkt —
R154%
R213%
R38%
Distance25%
Fighter props
Most sig. strikestie 2.8%
MacDonald
48.1%+102
Doerksen
-10249.2%
Most takedownstie 45.1%
MacDonald
25.8%+113
Doerksen
-11329.1%
Significant strikes — over/under
MacDonald
Expected: 18.9
19
Over 19
40.5%
+138
Exactly 19
3.4%
push
Under 19
56.1%
-138
02448
Doerksen
Expected: 19.2
19
Over 19
41.3%
+134
Exactly 19
3.4%
push
Under 19
55.3%
-134
02448
Takedowns — over/under
MacDonald
Expected: 0.6
0.5
Over 0.5
33.8%
+196
Under 0.5
66.2%
-196
035
Doerksen
Expected: 0.7
0.5
Over 0.5
36.7%
+172
Under 0.5
63.3%
-172
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 7.0 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
MacDonald25.5%60.9%−35.4-168
Doerksen74.5%39.1%+35.4+148

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
61.0Striking49.8
MacDonald +11.1
31.6Grappling57.4
Doerksen +25.8
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
MacDonaldDoerksen
Tale of the tape
Ratings (Elo)
1533
Pound-for-pound
1504
1531
Divisional
1504
1488
Striking offense
1489
1508
Striking defense
1480
1512
Grappling offense
1505
1481
Grappling defense
1481
Physical
32 yrs
Age
30 yrs
6'3"
Height
6'0"
80"
Reach
75"
Orthodox
Stance
Orthodox
Striking (UFC career)
1.89
Strikes landed / min
0.94
53%
Strike accuracy
40%
2.75
Strikes absorbed / min
2.97
47%
Strike defense
44%
Grappling (UFC career)
1.33
Takedowns / 15 min
2.67
12%
Takedown accuracy
35%
25%
Takedown defense
13%
1.0
Sub attempts / 15 min
1.9
Form & résumé
60%
UFC win rate
20%
-1
Win/loss streak
-3
60%
Last-5 win rate
20%
100%
Finish rate
100%
Recent opp. quality
182
Days since last fight
154
Recent form (last 5 UFC)
Jason MacDonald
  • LYushin OkamiU-DEC R3
    Close +2066mo before
  • WRory SingerKO/TKO R2
    Close -24510mo before
  • LRich FranklinKO/TKO R2
    Close +2901y 2mo before
  • WChris LebenSUB R2
    Close +1401y 4mo before
  • WEd HermanSUB R1
    Close +2251y 6mo before
Joe Doerksen
  • LEd HermanKO/TKO R3
    Close +1335mo before
  • LNate MarquardtU-DEC R3
    Close +1602y 2mo before
  • LMatt LindlandU-DEC R3
    Close +2502y 8mo before
  • WPatrick CoteSUB R3
    3y before
  • LJoe RiggsKO/TKO R2
    3y 8mo before
MacDonald — win / loss by method
Record: 19-9-0

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, 3 losses
W
11% of wins
L
33% of losses
Submission
16 wins, 2 losses
W
84% of wins
L
22% of losses
Decision
1 win, 4 losses
W
5% of wins
L
44% of losses
UFC
3win2loss0draw0NC
WinsLosses
1 (33%)KO/TKO(50%) 1
2 (67%)Submission(0%) 0
0 (0%)Decision(50%) 1
Non-UFC
16win7loss0draw0NC
WinsLosses
1 (6%)KO/TKO(29%) 2
14 (88%)Submission(29%) 2
1 (6%)Decision(43%) 3
Doerksen — win / loss by method
Record: 39-11-0

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
7 wins, 4 losses
W
18% of wins
L
36% of losses
Submission
29 wins, 3 losses
W
74% of wins
L
27% of losses
Decision
3 wins, 4 losses
W
8% of wins
L
36% of losses
UFC
1win4loss0draw0NC
WinsLosses
0 (0%)KO/TKO(50%) 2
1 (100%)Submission(0%) 0
0 (0%)Decision(50%) 2
Non-UFC
38win7loss0draw0NC
WinsLosses
7 (18%)KO/TKO(29%) 2
28 (74%)Submission(43%) 3
3 (8%)Decision(29%) 2

Profiles

Experience
MacDonald
Doerksen
5
UFC fights
5
45.1 min · 9.0 avg
Octagon time
61.9 min · 12.4 avg
26y 7m
Career length
27y 6m
UFC schedule strength

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

MacDonald
Doerksen
82W–19L · 81.2%
Overall
75W–19L · 79.8%
40W–13L · 75.5%
Wins
6W–1L · 85.7%
42W–6L · 87.5%
Losses
69W–18L · 79.3%
Non-UFC schedule strength
MacDonald
Doerksen
194W–98L · 66.4%
Overall
346W–171L · 66.9%
114W–72L · 61.3%
Wins
293W–153L · 65.7%
80W–26L · 75.5%
Losses
53W–18L · 74.6%
1 of Doerksen's non-UFC opponents have no record in our data, so this is understated. Refresh data to fill them in.
Distance striking
MacDonald
Doerksen
2.08
Landed / min
3.41
22.6%
Accuracy
36.4%
62.0%
Defense
48.9%
0.00
Knockdowns / 15 min
0.24
14.9%
Time at distance
19.0%
Grappling & control
MacDonald
Doerksen
1.33
Takedowns / 15 min
2.67
12.1%
Takedown accuracy
35.5%
25.0%
Takedown defense
13.3%
1.00
Sub attempts / 15 min
1.94
47.8%
Control share
23.7%
Strike target map
MacDonald
  • Head29%(25)div 63%
  • Body14%(12)div 20%
  • Legs56%(48)div 18%
Doerksen
  • Head57%(33)div 63%
  • Body29%(17)div 20%
  • Legs14%(8)div 18%

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

Jason MacDonald
CloseSSTDKDCtrl

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

Joe Doerksen
CloseSSTDKDCtrl

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