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UFC Fight Night: Overeem vs Arlovski
VS
Heather Clark
Heather Clark
7-4 · USA
May 8, 2016 · Rotterdam, Zuid-Holland, Netherlands
Strawweight · 3 rounds
Karolina Kowalkiewicz def. Heather Clark by U-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
Kowalkiewicz35/810/000:01
Clark29/530/401:44
R2
Kowalkiewicz38/880/000:26
Clark19/400/801:45
R3
Kowalkiewicz46/920/100:19
Clark22/590/301:31
Total
Kowalkiewicz119/2610/100:46
Clark70/1520/1505:00

Scorecards

Kowalkiewicz vs Clark

RdMark CollettPaul SutherlandPeter LaveryCommunity
R19-1010-99-109.6-9.4
R210-910-910-910-8.9
R310-910-910-910-9
Total29-2830-2729-2829.6-27.3

Media (14 cards) · avg 29.227.8 · 14 Kowalkiewicz · 0 Clark

Official cards + public consensus via MMA Decisions. Per round: Kowalkiewicz-Clark.

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
KowalkiewiczWin probabilityClark
65.8%34.2%
KO / TKO
26%
Submission
32%
Decision
42%
Expected fight time: 9.4 min
What drives the pick

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

Predicted outcomes
Kowalkiewicz66%
Wins by
Model
Equity
Mkt
KO / TKO16%24%
Submission20%30%
Decision30%46%
Predicted output
Sig. strikes52 (2968)act 119
Takedowns0.3 (0.01.2)act 0
Clark34%
Wins by
Model
Equity
Mkt
KO / TKO10%29%
Submission12%35%
Decision12%36%
Predicted output
Sig. strikes50 (2865)act 70
Takedowns0.4 (0.01.7)act 0
Combined totals~102 sig strikes~0.7 takedownsmkt —
How it ends
mkt —
R138%
R27%
R313%
Distance42%
Fighter props
Most sig. strikestie 1.1%
Kowalkiewicz
51.7%-109
Clark
+10947.2%
Most takedownstie 49.7%
Kowalkiewicz
18.9%+167
Clark
-16731.5%
Significant strikes — over/under
Kowalkiewicz
Expected: 52.2
52
Over 52
42.1%
+134
Exactly 52
1.3%
push
Under 52
56.6%
-134
066131
Clark
Expected: 49.8
50
Over 50
41.5%
+138
Exactly 50
1.3%
push
Under 50
57.1%
-138
063125
Takedowns — over/under
Kowalkiewicz
Expected: 0.3
0.5
Over 0.5
25.8%
+288
Under 0.5
74.2%
-288
035
Clark
Expected: 0.4
0.5
Over 0.5
38.1%
+162
Under 0.5
61.9%
-162
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 9.4 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
Kowalkiewicz65.8%73.3%−7.5-320
Clark34.2%26.7%+7.5+260

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
73.8Striking59.7
Kowalkiewicz +14.0
24.7Grappling51.6
Clark +26.9
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
KowalkiewiczClark
Tale of the tape
Ratings (Elo)
1547
Pound-for-pound
1513
1547
Divisional
1513
1501
Striking offense
1500
1530
Striking defense
1498
1482
Grappling offense
1502
1502
Grappling defense
1503
Physical
30 yrs
Age
35 yrs
5'3"
Height
5'6"
64"
Reach
64"
Orthodox
Stance
Orthodox
Striking (UFC career)
4.40
Strikes landed / min
3.73
39%
Strike accuracy
57%
2.27
Strikes absorbed / min
4.60
66%
Strike defense
42%
Grappling (UFC career)
0.00
Takedowns / 15 min
1.00
Takedown accuracy
20%
89%
Takedown defense
100%
0.0
Sub attempts / 15 min
1.0
Form & résumé
100%
UFC win rate
100%
+1
Win/loss streak
+1
100%
Last-5 win rate
100%
0%
Finish rate
0%
Recent opp. quality
141
Days since last fight
513
Recent form (last 5 UFC)
Karolina Kowalkiewicz
  • WRanda MarkosU-DEC R3
    Close +1455mo before
Heather Clark
  • WBec RawlingsU-DEC R3
    Close +1751y 5mo before
Kowalkiewicz — win / loss by method
Record: 8-0-0

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, 0 losses
W
13% of wins
L
Submission
2 wins, 0 losses
W
25% of wins
L
Decision
5 wins, 0 losses
W
63% of wins
L
UFC
1win0loss0draw0NC
WinsLosses
0 (0%)KO/TKO() 0
0 (0%)Submission() 0
1 (100%)Decision() 0
Non-UFC
7win0loss0draw0NC
WinsLosses
1 (14%)KO/TKO() 0
2 (29%)Submission() 0
4 (57%)Decision() 0
Clark — win / loss by method
Record: 7-4-0

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
2 wins, 1 loss
W
29% of wins
L
25% of losses
Submission
3 wins, 0 losses
W
43% of wins
L
0% of losses
Decision
2 wins, 3 losses
W
29% of wins
L
75% of losses
UFC
1win0loss0draw0NC
WinsLosses
0 (0%)KO/TKO() 0
0 (0%)Submission() 0
1 (100%)Decision() 0
Non-UFC
6win4loss0draw0NC
WinsLosses
2 (33%)KO/TKO(25%) 1
3 (50%)Submission(0%) 0
1 (17%)Decision(75%) 3

Profiles

Experience
Kowalkiewicz
Clark
1
UFC fights
1
15.0 min · 15.0 avg
Octagon time
15.0 min · 15.0 avg
14y 2m
Career length
16y 3m
UFC schedule strength

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

Kowalkiewicz
Clark
5W–2L · 71.4%
Overall
5W–3L · 62.5%
5W–2L · 71.4%
Wins
5W–3L · 62.5%
0W–0L
Losses
0W–0L
Non-UFC schedule strength
Kowalkiewicz
Clark
36W–10L · 78.3%
Overall
25W–15L · 62.5%
36W–10L · 78.3%
Wins
11W–8L · 57.9%
0W–0L
Losses
14W–7L · 66.7%
Distance striking
Kowalkiewicz
Clark
6.10
Landed / min
6.70
32.0%
Accuracy
45.3%
67.0%
Defense
47.6%
0.00
Knockdowns / 15 min
0.00
51.4%
Time at distance
28.9%
Grappling & control
Kowalkiewicz
Clark
0.00
Takedowns / 15 min
1.00
Takedown accuracy
20.0%
88.9%
Takedown defense
100.0%
0.00
Sub attempts / 15 min
1.00
21.6%
Control share
88.6%
Strike target map
Kowalkiewicz
  • Head61%(40)div 61%
  • Body18%(12)div 23%
  • Legs21%(14)div 16%
Clark
  • Head59%(33)div 61%
  • Body27%(15)div 23%
  • Legs14%(8)div 16%

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

Karolina Kowalkiewicz
CloseSSTDKDCtrl

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

Heather Clark
CloseSSTDKDCtrl

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