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UFC Fight Night 4
Josh Koscheck
Josh Koscheck
4-1 · USA
VS
Ansar Chalangov
Ansar Chalangov
7-1 · RUS
April 6, 2006 · Las Vegas, Nevada, USA
Welterweight · 3 rounds
171.0lb
Weigh-in
169.5lb
Josh Koscheck def. Ansar Chalangov by SUB (Rear Naked Choke), R1 3:29
Performance
Round by round
SSTDKDCtrl
R1 · 3:29
Koscheck2/112/202:45
Chalangov2/40/000:08
Total
Koscheck2/112/202:45
Chalangov2/40/000:08

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
KoscheckWin probabilityChalangov
50.8%49.2%
KO / TKO
8%
Submission
49%
Decision
42%
Expected fight time: 8.2 min
What drives the pick

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

Predicted outcomes
Koscheck51%
Wins by
Model
Equity
Mkt
KO / TKO4%9%
Submission25%48%
Decision22%43%
Predicted output
Sig. strikes30 (1639)act 2
Takedowns1.8 (0.23.9)act 2
Chalangov49%
Wins by
Model
Equity
Mkt
KO / TKO4%8%
Submission25%50%
Decision20%42%
Predicted output
Sig. strikes30 (1739)act 2
Takedowns0.0 (0.00.1)act 0
Combined totals~60 sig strikes~1.8 takedownsmkt —
How it ends
mkt —
R152%
R23%
R33%
Distance42%
Fighter props
Most sig. strikestie 1.8%
Koscheck
48.8%+101
Chalangov
-10149.4%
Most takedownstie 5.7%
Koscheck
93.1%-7256
Chalangov
+72561.3%
Significant strikes — over/under
Koscheck
Expected: 30.1
30
Over 30
41.6%
+135
Exactly 30
2.2%
push
Under 30
56.2%
-135
03876
Chalangov
Expected: 30.2
30
Over 30
41.9%
+133
Exactly 30
2.2%
push
Under 30
55.9%
-133
03876
Takedowns — over/under
Koscheck
Expected: 1.8
2
Over 2
35.6%
+104
Exactly 2
27.3%
push
Under 2
37.1%
-104
036
Chalangov
Expected: 0.0
0
Over 0
10.9%
Exactly 0
89.1%
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 8.2 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
Koscheck50.8%69.3%−18.5-270
Chalangov49.2%30.7%+18.5+210

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
77.9Striking49.9
Koscheck +28.0
59.1Grappling25.0
Koscheck +34.1
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
KoscheckChalangov
Tale of the tape
Ratings (Elo)
1522
Pound-for-pound
1508
1507
Divisional
1508
1486
Striking offense
1493
1506
Striking defense
1493
1551
Grappling offense
1505
1529
Grappling defense
1494
Physical
28 yrs
Age
26 yrs
5'10"
Height
5'9"
73"
Reach
Orthodox
Stance
Orthodox
Striking (UFC career)
1.06
Strikes landed / min
0.83
63%
Strike accuracy
100%
0.29
Strikes absorbed / min
3.31
71%
Strike defense
27%
Grappling (UFC career)
6.52
Takedowns / 15 min
0.00
82%
Takedown accuracy
0%
Takedown defense
0%
0.7
Sub attempts / 15 min
12.4
Form & résumé
67%
UFC win rate
0%
-1
Win/loss streak
-1
67%
Last-5 win rate
0%
100%
Finish rate
Recent opp. quality
185
Days since last fight
138
Recent form (last 5 UFC)
Josh Koscheck
  • LDrew FickettSUB R3
    6mo before
  • WPete SprattSUB R1
    8mo before
  • WChris SanfordKO/TKO R1
    1y before
Ansar Chalangov
  • LThiago AlvesKO/TKO R1
    Close -2655mo before
Koscheck — win / loss by method
Record: 4-1-0

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, 0 losses
W
25% of wins
L
0% of losses
Submission
2 wins, 1 loss
W
50% of wins
L
100% of losses
Decision
1 win, 0 losses
W
25% of wins
L
0% of losses
UFC
2win1loss0draw0NC
WinsLosses
1 (50%)KO/TKO(0%) 0
1 (50%)Submission(100%) 1
0 (0%)Decision(0%) 0
Non-UFC
2win0loss0draw0NC
WinsLosses
0 (0%)KO/TKO() 0
1 (50%)Submission() 0
1 (50%)Decision() 0
Chalangov — win / loss by method
Record: 7-1-0

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
2 wins, 1 loss
W
29% of wins
L
100% of losses
Submission
4 wins, 0 losses
W
57% of wins
L
0% of losses
Decision
1 win, 0 losses
W
14% of wins
L
0% of losses
UFC
0win1loss0draw0NC
WinsLosses
0 ()KO/TKO(100%) 1
0 ()Submission(0%) 0
0 ()Decision(0%) 0
Non-UFC
7win0loss0draw0NC
WinsLosses
2 (29%)KO/TKO() 0
4 (57%)Submission() 0
1 (14%)Decision() 0

Profiles

Experience
Koscheck
Chalangov
3
UFC fights
1
20.7 min · 6.9 avg
Octagon time
2.4 min · 2.4 avg
22y 7m
Career length
23y 4m
UFC schedule strength

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

Koscheck
Chalangov
44W–12L · 78.6%
Overall
8W–4L · 66.7%
17W–9L · 65.4%
Wins
0W–0L
27W–3L · 90.0%
Losses
8W–4L · 66.7%
Non-UFC schedule strength
Koscheck
Chalangov
10W–8L · 55.6%
Overall
66W–16L · 80.5%
10W–8L · 55.6%
Wins
66W–16L · 80.5%
0W–0L
Losses
0W–0L
Distance striking
Koscheck
Chalangov
1.63
Landed / min
0.00
36.4%
Accuracy
78.9%
Defense
0.0%
0.00
Knockdowns / 15 min
0.00
11.9%
Time at distance
11.0%
Grappling & control
Koscheck
Chalangov
6.52
Takedowns / 15 min
0.00
81.8%
Takedown accuracy
0.0%
Takedown defense
0.0%
0.72
Sub attempts / 15 min
12.41
98.5%
Control share
41.9%
Strike target map
Koscheck
  • Head95%(21)div 69%
  • Body0%(0)div 20%
  • Legs5%(1)div 10%
Chalangov
  • Head50%(1)div 69%
  • Body0%(0)div 20%
  • Legs50%(1)div 10%

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

Josh Koscheck
CloseSSTDKDCtrl

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

Ansar Chalangov
CloseSSTDKDCtrl

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