The Ultimate Fight Fan
+ Log a bet
UFC Fight Night 3
Stephan Bonnar
Stephan Bonnar
8-2 · USA
VS
James Irvin
James Irvin
9-1 · USA
January 16, 2006 · Las Vegas, Nevada, USA
Light Heavyweight · 3 rounds
205.0lb
Weigh-in
204.0lb
Stephan Bonnar def. James Irvin by SUB (Kimura), R1 4:30
Performance
Round by round
SSTDKDCtrl
R1 · 4:30
Bonnar2/52/304:03
Irvin5/60/000:00
Total
Bonnar2/52/304:03
Irvin5/60/000:00

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
BonnarWin probabilityIrvin
76.2%23.8%
KO / TKO
48%
Submission
26%
Decision
27%
Expected fight time: 7.6 min
What drives the pick

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

Predicted outcomes
Bonnar76%
Wins by
Model
Equity
Mkt
KO / TKO31%41%
Submission22%29%
Decision23%30%
Predicted output
Sig. strikes28 (1536)act 2
Takedowns1.4 (0.03.8)act 2
Irvin24%
Wins by
Model
Equity
Mkt
KO / TKO17%70%
Submission3%14%
Decision4%16%
Predicted output
Sig. strikes22 (1228)act 5
Takedowns0.1 (0.00.0)act 0
Combined totals~50 sig strikes~1.5 takedownsmkt —
How it ends
mkt —
R146%
R219%
R38%
Distance27%
Fighter props
Most sig. strikestie 2.1%
Bonnar
59.9%-158
Irvin
+15838.0%
Most takedownstie 38.7%
Bonnar
56.7%-1235
Irvin
+12354.6%
Significant strikes — over/under
Bonnar
Expected: 27.9
28
Over 28
41.2%
+137
Exactly 28
2.3%
push
Under 28
56.5%
-137
03570
Irvin
Expected: 21.9
22
Over 22
40.6%
+139
Exactly 22
2.9%
push
Under 22
56.5%
-139
02855
Takedowns — over/under
Bonnar
Expected: 1.4
1.5
Over 1.5
42.3%
+136
Under 1.5
57.7%
-136
035
Irvin
Expected: 0.1
0
Over 0
8.7%
Exactly 0
91.3%
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 7.6 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
Bonnar76.2%60.9%+15.3-175
Irvin23.8%39.1%−15.3+145

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
61.9Striking50.2
Bonnar +11.8
52.7Grappling11.1
Bonnar +41.6
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
BonnarIrvin
Tale of the tape
Ratings (Elo)
1519
Pound-for-pound
1527
1519
Divisional
1542
Striking offense
Striking defense
1548
Grappling offense
1488
1542
Grappling defense
1488
Physical
28 yrs
Age
27 yrs
6'4"
Height
6'2"
79"
Reach
75"
Orthodox
Stance
Orthodox
Striking (UFC career)
3.33
Strikes landed / min
1.27
41%
Strike accuracy
69%
3.30
Strikes absorbed / min
3.11
54%
Strike defense
21%
Grappling (UFC career)
1.50
Takedowns / 15 min
0.00
43%
Takedown accuracy
70%
Takedown defense
40%
0.5
Sub attempts / 15 min
0.0
Form & résumé
50%
UFC win rate
50%
+1
Win/loss streak
+1
50%
Last-5 win rate
50%
0%
Finish rate
100%
Recent opp. quality
163
Days since last fight
149
Recent form (last 5 UFC)
Stephan Bonnar
  • WSam HogerU-DEC R3
    5mo before
  • LForrest GriffinU-DEC R3
    9mo before
James Irvin
  • WTerry MartinKO/TKO R2
    Close -1105mo before
  • LMike KyleKO/TKO R1
    Close -13011mo before
Bonnar — win / loss by method
Record: 8-2-0

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
1 win, 1 loss
W
13% of wins
L
50% of losses
Submission
5 wins, 0 losses
W
63% of wins
L
0% of losses
Decision
2 wins, 1 loss
W
25% of wins
L
50% of losses
UFC
1win1loss0draw0NC
WinsLosses
0 (0%)KO/TKO(0%) 0
0 (0%)Submission(0%) 0
1 (100%)Decision(100%) 1
Non-UFC
7win1loss0draw0NC
WinsLosses
1 (14%)KO/TKO(100%) 1
5 (71%)Submission(0%) 0
1 (14%)Decision(0%) 0
Irvin — win / loss by method
Record: 9-1-0

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
8 wins, 1 loss
W
89% of wins
L
100% of losses
Submission
1 win, 0 losses
W
11% of wins
L
0% of losses
Decision
0 wins, 0 losses
W
0% of wins
L
0% of losses
UFC
1win1loss0draw0NC
WinsLosses
1 (100%)KO/TKO(100%) 1
0 (0%)Submission(0%) 0
0 (0%)Decision(0%) 0
Non-UFC
8win0loss0draw0NC
WinsLosses
7 (88%)KO/TKO() 0
1 (13%)Submission() 0
0 (0%)Decision() 0

Profiles

Experience
Bonnar
Irvin
2
UFC fights
2
30.0 min · 15.0 avg
Octagon time
7.1 min · 3.5 avg
24y 9m
Career length
23y 2m
UFC schedule strength

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

Bonnar
Irvin
14W–2L · 87.5%
Overall
18W–4L · 81.8%
5W–0L · 100.0%
Wins
10W–1L · 90.9%
9W–2L · 81.8%
Losses
8W–3L · 72.7%
Non-UFC schedule strength
Bonnar
Irvin
27W–16L · 62.8%
Overall
21W–9L · 70.0%
26W–16L · 61.9%
Wins
21W–9L · 70.0%
1W–0L · 100.0%
Losses
0W–0L
Distance striking
Bonnar
Irvin
4.44
Landed / min
11.57
34.2%
Accuracy
60.0%
61.0%
Defense
37.5%
0.00
Knockdowns / 15 min
2.12
38.3%
Time at distance
7.3%
Grappling & control
Bonnar
Irvin
1.50
Takedowns / 15 min
0.00
42.9%
Takedown accuracy
70.0%
Takedown defense
40.0%
0.50
Sub attempts / 15 min
0.00
68.6%
Control share
2.6%
Strike target map
Bonnar
  • Head94%(94)div 69%
  • Body3%(3)div 13%
  • Legs3%(3)div 18%
Irvin
  • Head44%(4)div 69%
  • Body22%(2)div 13%
  • Legs33%(3)div 18%

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

Stephan Bonnar
CloseSSTDKDCtrl

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

James Irvin
CloseSSTDKDCtrl

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