The Ultimate Fight Fan
+ Log a bet
UFC 94: St-Pierre vs Penn 2
Jake O'Brien
Jake O'Brien
10-2 · USA
VS
January 31, 2009 · Las Vegas, Nevada, USA
Light Heavyweight · 3 rounds
205.0lb
Weigh-in
206.0lb
Jake O'Brien def. Christian Wellisch by S-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
O'Brien12/283/312:38
Wellisch9/370/100:00
R2
O'Brien6/312/301:37
Wellisch20/620/000:00
R3
O'Brien7/254/501:00
Wellisch17/800/000:04
Total
O'Brien25/849/1115:15
Wellisch46/1790/100:04

Scorecards

O'Brien vs Wellisch

RdCecil PeoplesMarcos RosalesNelson HamiltonCommunity
R1---10-9
R2---9-10
R3---9.5-9.5
Total29-2828-2929-2828.5-28.5

Media (3 cards) · avg 29.327.7 · 3 O'Brien · 0 Wellisch

Official cards + public consensus via MMA Decisions. Per round: O'Brien-Wellisch.

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
O'BrienWin probabilityWellisch
69.4%30.6%
KO / TKO
53%
Submission
15%
Decision
32%
Expected fight time: 8.7 min
What drives the pick

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

Predicted outcomes
O'Brien69%
Wins by
Model
Equity
Mkt
KO / TKO38%56%
Submission8%11%
Decision23%33%
Predicted output
Sig. strikes24 (1331)act 25
Takedowns2.1 (0.05.0)act 9
Wellisch31%
Wins by
Model
Equity
Mkt
KO / TKO15%47%
Submission7%24%
Decision9%29%
Predicted output
Sig. strikes20 (1126)act 46
Takedowns0.2 (0.00.8)act 0
Combined totals~44 sig strikes~2.3 takedownsmkt —
How it ends
mkt —
R136%
R219%
R313%
Distance32%
Fighter props
Most sig. strikestie 2.4%
O'Brien
56.7%-138
Wellisch
+13841.0%
Most takedownstie 26.5%
O'Brien
66.9%-1009
Wellisch
+10096.6%
Significant strikes — over/under
O'Brien
Expected: 24.2
24
Over 24
41.6%
+134
Exactly 24
2.7%
push
Under 24
55.7%
-134
03161
Wellisch
Expected: 20.3
20.5
Over 20.5
41.7%
+140
Under 20.5
58.3%
-140
02651
Takedowns — over/under
O'Brien
Expected: 2.1
2
Over 2
40.1%
+109
Exactly 2
16.0%
push
Under 2
43.9%
-109
047
Wellisch
Expected: 0.2
0
Over 0
15.6%
Exactly 0
84.4%
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 8.7 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
O'Brien69.4%70.3%−0.9-266
Wellisch30.6%29.7%+0.9+226

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
65.1Striking51.8
O'Brien +13.3
54.0Grappling78.2
Wellisch +24.2
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
O'BrienWellisch
Tale of the tape
Ratings (Elo)
1536
Pound-for-pound
1511
1525
Divisional
1510
1468
Striking offense
1481
1498
Striking defense
1486
1523
Grappling offense
1515
1516
Grappling defense
1493
Physical
24 yrs
Age
33 yrs
6'3"
Height
6'2"
76"
Reach
77"
Orthodox
Stance
Orthodox
Striking (UFC career)
1.19
Strikes landed / min
3.15
41%
Strike accuracy
30%
1.36
Strikes absorbed / min
3.97
63%
Strike defense
49%
Grappling (UFC career)
6.68
Takedowns / 15 min
2.05
55%
Takedown accuracy
50%
0%
Takedown defense
73%
0.3
Sub attempts / 15 min
2.1
Form & résumé
60%
UFC win rate
50%
-2
Win/loss streak
-1
60%
Last-5 win rate
50%
33%
Finish rate
50%
Recent opp. quality
196
Days since last fight
252
Recent form (last 5 UFC)
Jake O'Brien
  • LCain VelasquezKO/TKO R1
    Close +2436mo before
  • LAndrei ArlovskiKO/TKO R2
    Close +29611mo before
  • WHeath HerringU-DEC R3
    Close +3252y before
  • WJosh ShockmanU-DEC R3
    2y 2mo before
  • WKristof MidouxKO/TKO R2
    Close -4002y 6mo before
Christian Wellisch
  • LShane CarwinKO/TKO R1
    Close +1788mo before
  • WScott JunkSUB R1
    Close -2251y 4mo before
  • WAnthony PeroshU-DEC R3
    Close -1362y 1mo before
  • LCheick KongoKO/TKO R1
    Close +1402y 5mo before
O'Brien — 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
7 wins, 2 losses
W
70% of wins
L
100% of losses
Submission
1 win, 0 losses
W
10% of wins
L
0% of losses
Decision
2 wins, 0 losses
W
20% of wins
L
0% of losses
UFC
3win2loss0draw0NC
WinsLosses
1 (33%)KO/TKO(100%) 2
0 (0%)Submission(0%) 0
2 (67%)Decision(0%) 0
Non-UFC
7win0loss0draw0NC
WinsLosses
6 (86%)KO/TKO() 0
1 (14%)Submission() 0
0 (0%)Decision() 0
Wellisch — win / loss by method
Record: 8-4-0

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
4 wins, 3 losses
W
50% of wins
L
75% of losses
Submission
3 wins, 1 loss
W
38% of wins
L
25% of losses
Decision
1 win, 0 losses
W
13% of wins
L
0% of losses
UFC
2win2loss0draw0NC
WinsLosses
0 (0%)KO/TKO(100%) 2
1 (50%)Submission(0%) 0
1 (50%)Decision(0%) 0
Non-UFC
6win2loss0draw0NC
WinsLosses
4 (67%)KO/TKO(50%) 1
2 (33%)Submission(50%) 1
0 (0%)Decision(0%) 0

Profiles

Experience
O'Brien
Wellisch
5
UFC fights
4
47.2 min · 9.4 avg
Octagon time
21.9 min · 5.5 avg
21y 2m
Career length
24y 7m
UFC schedule strength

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

O'Brien
Wellisch
49W–21L · 70.0%
Overall
27W–5L · 84.4%
34W–16L · 68.0%
Wins
11W–3L · 78.6%
15W–5L · 75.0%
Losses
16W–2L · 88.9%
Non-UFC schedule strength
O'Brien
Wellisch
29W–48L · 37.7%
Overall
24W–10L · 70.6%
29W–48L · 37.7%
Wins
19W–10L · 65.5%
0W–0L
Losses
5W–0L · 100.0%
Distance striking
O'Brien
Wellisch
0.34
Landed / min
5.18
10.3%
Accuracy
22.5%
79.8%
Defense
63.6%
0.00
Knockdowns / 15 min
0.68
25.1%
Time at distance
34.4%
Grappling & control
O'Brien
Wellisch
6.68
Takedowns / 15 min
2.05
55.3%
Takedown accuracy
50.0%
0.0%
Takedown defense
72.7%
0.32
Sub attempts / 15 min
2.05
85.6%
Control share
39.6%
Strike target map
O'Brien
  • Head95%(53)div 66%
  • Body5%(3)div 16%
  • Legs0%(0)div 18%
Wellisch
  • Head84%(58)div 66%
  • Body7%(5)div 16%
  • Legs9%(6)div 18%

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

Jake O'Brien
CloseSSTDKDCtrl

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

Christian Wellisch
CloseSSTDKDCtrl

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