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UFC Fight Night: McGregor vs Siver
Conor McGregor
Conor McGregor
16-2 · IRL
VS
Dennis Siver
Dennis Siver
22-9 · DEU
January 18, 2015 · Boston, Massachusetts, USA
Featherweight · 5 rounds · Main event
145.0lb
Weigh-in
146.0lb
Conor McGregor def. Dennis Siver by KO/TKO (Punch), R2 1:54
Performance
Round by round
SSTDKDCtrl
R1
McGregor43/870/000:00
Siver27/820/300:03
R2 · 1:54
McGregor21/320/010:26
Siver5/220/000:00
Total
McGregor64/1190/010:26
Siver32/1040/300:03

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
McGregorWin probabilitySiver
79.9%20.1%
KO / TKO
62%
Submission
14%
Decision
24%
Expected fight time: 15.6 min
What drives the pick

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

Predicted outcomes
McGregor80%
Wins by
Model
Equity
Mkt
KO / TKO55%69%
Submission9%11%
Decision16%20%
Predicted output
Sig. strikes88 (50114)act 64
Takedowns0.4 (0.01.8)act 0
Siver20%
Wins by
Model
Equity
Mkt
KO / TKO7%34%
Submission5%25%
Decision8%41%
Predicted output
Sig. strikes70 (4092)act 32
Takedowns0.2 (0.00.8)act 0
Combined totals~158 sig strikes~0.6 takedownsmkt —
How it ends
mkt —
R120%
R28%
R324%
R414%
R510%
Distance24%
Fighter props
Most sig. strikestie 0.7%
McGregor
59.8%-151
Siver
+15139.5%
Most takedownstie 63.1%
McGregor
23.3%-170
Siver
+17013.7%
Significant strikes — over/under
McGregor
Expected: 87.5
87.5
Over 87.5
42.5%
+135
Under 87.5
57.5%
-135
0110219
Siver
Expected: 70.4
70.5
Over 70.5
42.4%
+136
Under 70.5
57.6%
-136
089177
Takedowns — over/under
McGregor
Expected: 0.4
0.5
Over 0.5
25.7%
+288
Under 0.5
74.3%
-288
035
Siver
Expected: 0.2
0
Over 0
16.8%
Exactly 0
83.2%
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 15.6 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
McGregor79.9%88.8%−8.9-975
Siver20.1%11.2%+8.9+775

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
73.3Striking67.8
McGregor +5.5
67.1Grappling43.1
McGregor +23.9
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
McGregorSiver
Tale of the tape
Ratings (Elo)
1595
Pound-for-pound
1597
1595
Divisional
1551
1522
Striking offense
1524
1512
Striking defense
1525
1506
Grappling offense
1493
1513
Grappling defense
1516
Physical
26 yrs
Age
36 yrs
5'9"
Height
5'6"
74"
Reach
70"
Southpaw
Stance
Orthodox
Striking (UFC career)
4.60
Strikes landed / min
3.80
38%
Strike accuracy
32%
2.46
Strikes absorbed / min
2.43
69%
Strike defense
69%
Grappling (UFC career)
3.41
Takedowns / 15 min
1.04
83%
Takedown accuracy
36%
100%
Takedown defense
63%
0.0
Sub attempts / 15 min
0.3
Form & résumé
100%
UFC win rate
61%
+4
Win/loss streak
+1
100%
Last-5 win rate
60%
75%
Finish rate
45%
Recent opp. quality
113
Days since last fight
106
Recent form (last 5 UFC)
Conor McGregor
  • WDustin PoirierKO/TKO R1
    Close -2604mo before
  • WDiego BrandaoKO/TKO R1
    Close -6906mo before
  • WMax HollowayU-DEC R3
    Close -2451y 5mo before
  • WMarcus BrimageKO/TKO R1
    Close -1501y 9mo before
Dennis Siver
  • WCharles RosaU-DEC R3
    Close -2903mo before
  • LCub SwansonKO/TKO R3
    Close +1671y 6mo before
  • WNam PhanU-DEC R3
    Close -2902y 1mo before
  • WDiego NunesU-DEC R3
    Close +1702y 9mo before
  • LDonald CerroneSUB R1
    Close +2153y 3mo before
McGregor — win / loss by method
Record: 16-2-0

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
14 wins, 0 losses
W
88% of wins
L
0% of losses
Submission
1 win, 2 losses
W
6% of wins
L
100% of losses
Decision
1 win, 0 losses
W
6% of wins
L
0% of losses
UFC
4win0loss0draw0NC
WinsLosses
3 (75%)KO/TKO() 0
0 (0%)Submission() 0
1 (25%)Decision() 0
Non-UFC
12win2loss0draw0NC
WinsLosses
11 (92%)KO/TKO(0%) 0
1 (8%)Submission(100%) 2
0 (0%)Decision(0%) 0
Siver — win / loss by method
Record: 22-9-0, 1 NC

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
32% of wins
L
22% of losses
Submission
7 wins, 5 losses
W
32% of wins
L
56% of losses
Decision
8 wins, 2 losses
W
36% of wins
L
22% of losses
UFC
11win6loss0draw1NC
WinsLosses
3 (27%)KO/TKO(33%) 2
2 (18%)Submission(33%) 2
6 (55%)Decision(33%) 2
Non-UFC
11win3loss0draw0NC
WinsLosses
4 (36%)KO/TKO(0%) 0
5 (45%)Submission(100%) 3
2 (18%)Decision(0%) 0

Profiles

Experience
McGregor
Siver
4
UFC fights
18
22.0 min · 5.5 avg
Octagon time
187.4 min · 10.4 avg
18y 5m
Career length
22y 5m
UFC schedule strength

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

McGregor
Siver
47W–15L · 75.8%
Overall
229W–67L · 77.4%
47W–15L · 75.8%
Wins
147W–41L · 78.2%
0W–0L
Losses
82W–26L · 75.9%
Non-UFC schedule strength
McGregor
Siver
72W–26L · 73.5%
Overall
91W–50L · 64.5%
61W–21L · 74.4%
Wins
67W–45L · 59.8%
11W–5L · 68.8%
Losses
24W–5L · 82.8%
Distance striking
McGregor
Siver
5.87
Landed / min
5.10
33.3%
Accuracy
29.3%
70.8%
Defense
71.3%
2.05
Knockdowns / 15 min
0.56
56.6%
Time at distance
61.1%
Grappling & control
McGregor
Siver
3.41
Takedowns / 15 min
1.04
83.3%
Takedown accuracy
36.1%
100.0%
Takedown defense
63.0%
0.00
Sub attempts / 15 min
0.32
96.1%
Control share
56.7%
Strike target map
McGregor
  • Head76%(77)div 64%
  • Body9%(9)div 19%
  • Legs15%(15)div 17%
Siver
  • Head58%(412)div 64%
  • Body14%(101)div 19%
  • Legs28%(199)div 17%

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

Conor McGregor
CloseSSTDKDCtrl

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

Dennis Siver
CloseSSTDKDCtrl

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