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UFC on FOX: Henderson vs Diaz
Dennis Siver
Dennis Siver
20-8 · DEU
VS
Nam Phan
Nam Phan
18-10 · USA
December 8, 2012 · Seattle, Washington, USA
Featherweight · 3 rounds
146.0lb
Weigh-in
145.4lb
Dennis Siver def. Nam Phan by U-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
Siver63/1400/200:01
Phan15/660/000:00
R2
Siver36/891/102:36
Phan8/450/000:00
R3
Siver29/441/104:25
Phan1/90/000:00
Total
Siver128/2732/407:02
Phan24/1200/000:00

Scorecards

Siver vs Phan

RdDave HagenSal D'AmatoTerry BoehlkeCommunity
R110-910-910-810-8.5
R210-910-810-810-8.3
R310-810-810-810-8.4
Total30-2630-2530-2430-25.2

Media (10 cards) · avg 3026.1 · 10 Siver · 0 Phan

Official cards + public consensus via MMA Decisions. Per round: Siver-Phan.

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
SiverWin probabilityPhan
51.4%48.6%
KO / TKO
37%
Submission
9%
Decision
54%
Expected fight time: 11.1 min
What drives the pick

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

Predicted outcomes
Siver51%
Wins by
Model
Equity
Mkt
KO / TKO19%37%
Submission5%10%
Decision27%53%
Predicted output
Sig. strikes66 (3886)act 128
Takedowns0.4 (0.01.7)act 2
Phan49%
Wins by
Model
Equity
Mkt
KO / TKO18%37%
Submission3%7%
Decision28%56%
Predicted output
Sig. strikes49 (2864)act 24
Takedowns0.2 (0.00.8)act 0
Combined totals~115 sig strikes~0.6 takedownsmkt —
How it ends
mkt —
R118%
R218%
R39%
Distance55%
Fighter props
Most sig. strikestie 0.9%
Siver
63.3%-177
Phan
+17735.8%
Most takedownstie 58.4%
Siver
28.4%-215
Phan
+21513.2%
Significant strikes — over/under
Siver
Expected: 66.3
66.5
Over 66.5
42.3%
+136
Under 66.5
57.7%
-136
083166
Phan
Expected: 49.1
49
Over 49
42.0%
+135
Exactly 49
1.4%
push
Under 49
56.7%
-135
062123
Takedowns — over/under
Siver
Expected: 0.4
0.5
Over 0.5
31.8%
+214
Under 0.5
68.2%
-214
035
Phan
Expected: 0.2
0
Over 0
17.1%
Exactly 0
82.9%
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 11.1 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
Siver51.4%72.0%−20.6-290
Phan48.6%28.0%+20.6+245

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
64.9Striking66.1
Phan +1.2
36.8Grappling44.9
Phan +8.1
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
SiverPhan
Tale of the tape
Ratings (Elo)
1588
Pound-for-pound
1504
1535
Divisional
1503
1523
Striking offense
1513
1523
Striking defense
1493
1487
Grappling offense
1490
1507
Grappling defense
1502
Physical
33 yrs
Age
29 yrs
5'6"
Height
5'6"
70"
Reach
70"
Orthodox
Stance
Orthodox
Striking (UFC career)
3.62
Strikes landed / min
6.12
29%
Strike accuracy
42%
2.71
Strikes absorbed / min
5.97
68%
Strike defense
66%
Grappling (UFC career)
0.58
Takedowns / 15 min
0.20
22%
Takedown accuracy
100%
71%
Takedown defense
59%
0.3
Sub attempts / 15 min
0.2
Form & résumé
64%
UFC win rate
40%
+1
Win/loss streak
+1
80%
Last-5 win rate
40%
56%
Finish rate
0%
Recent opp. quality
238
Days since last fight
126
Recent form (last 5 UFC)
Dennis Siver
  • WDiego NunesU-DEC R3
    Close +1708mo before
  • LDonald CerroneSUB R1
    Close +2151y 1mo before
  • WMatt WimanU-DEC R3
    Close -1051y 5mo before
  • WGeorge SotiropoulosU-DEC R3
    missedClose +3251y 9mo before
  • WAndre WinnerSUB R1
    Close +1052y 1mo before
Nam Phan
  • WCole MillerS-DEC R3
    Close +1304mo before
  • LJimy HettesU-DEC R3
    Close -16511mo before
  • WLeonard GarciaU-DEC R3
    Close -2351y 2mo before
  • LMike BrownU-DEC R3
    Close +1901y 4mo before
  • LLeonard GarciaS-DEC R3
    Close +1652y before
Siver — win / loss by method
Record: 20-8-0

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, 1 loss
W
35% of wins
L
13% of losses
Submission
7 wins, 5 losses
W
35% of wins
L
63% of losses
Decision
6 wins, 2 losses
W
30% of wins
L
25% of losses
UFC
9win5loss0draw0NC
WinsLosses
3 (33%)KO/TKO(20%) 1
2 (22%)Submission(40%) 2
4 (44%)Decision(40%) 2
Non-UFC
11win3loss0draw0NC
WinsLosses
4 (36%)KO/TKO(0%) 0
5 (45%)Submission(100%) 3
2 (18%)Decision(0%) 0
Phan — win / loss by method
Record: 18-10-0

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, 3 losses
W
39% of wins
L
30% of losses
Submission
5 wins, 0 losses
W
28% of wins
L
0% of losses
Decision
6 wins, 7 losses
W
33% of wins
L
70% of losses
UFC
2win3loss0draw0NC
WinsLosses
0 (0%)KO/TKO(0%) 0
0 (0%)Submission(0%) 0
2 (100%)Decision(100%) 3
Non-UFC
16win7loss0draw0NC
WinsLosses
7 (44%)KO/TKO(43%) 3
5 (31%)Submission(0%) 0
4 (25%)Decision(57%) 4

Profiles

Experience
Siver
Phan
14
UFC fights
5
130.0 min · 9.3 avg
Octagon time
75.0 min · 15.0 avg
22y 5m
Career length
24y 10m
UFC schedule strength

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

Siver
Phan
183W–52L · 77.9%
Overall
80W–27L · 74.8%
120W–31L · 79.5%
Wins
33W–13L · 71.7%
63W–21L · 75.0%
Losses
47W–14L · 77.0%
Non-UFC schedule strength
Siver
Phan
91W–50L · 64.5%
Overall
117W–65L · 64.3%
67W–45L · 59.8%
Wins
68W–48L · 58.6%
24W–5L · 82.8%
Losses
49W–17L · 74.2%
Distance striking
Siver
Phan
4.62
Landed / min
9.44
28.0%
Accuracy
41.6%
70.4%
Defense
71.2%
0.81
Knockdowns / 15 min
0.00
67.5%
Time at distance
63.1%
Grappling & control
Siver
Phan
0.58
Takedowns / 15 min
0.20
21.7%
Takedown accuracy
100.0%
71.1%
Takedown defense
59.1%
0.35
Sub attempts / 15 min
0.20
34.9%
Control share
18.1%
Strike target map
Siver
  • Head55%(261)div 63%
  • Body15%(72)div 20%
  • Legs29%(138)div 17%
Phan
  • Head75%(344)div 63%
  • Body22%(101)div 20%
  • Legs3%(14)div 17%

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

Dennis Siver
CloseSSTDKDCtrl

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

Nam Phan
CloseSSTDKDCtrl

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