The Ultimate Fight Fan
+ Log a bet
UFC Fight Night: McGregor vs Siver
Sean O'Connell
Sean O'Connell
15-6 · USA
VS
Matt Van Buren
Matt Van Buren
6-3 · USA
January 18, 2015 · Boston, Massachusetts, USA
Light Heavyweight · 3 rounds
Sean O'Connell def. Matt Van Buren by KO/TKO (Punches), R3 2:11
Performance
Round by round
SSTDKDCtrl
R1
O'Connell18/390/102:29
Van Buren33/610/000:12
R2
O'Connell19/560/100:48
Van Buren47/1000/000:15
R3 · 2:11
O'Connell29/460/010:11
Van Buren20/510/000:00
Total
O'Connell66/1410/213:28
Van Buren100/2120/000:27

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
O'ConnellWin probabilityVan Buren
62.8%37.2%
KO / TKO
53%
Submission
18%
Decision
28%
Expected fight time: 8.3 min
What drives the pick

Each bar is a feature's push on the model from the center axis. Red pushes toward O'Connell, blue toward Van Buren. Tap a bar for why.

Predicted outcomes
O'Connell63%
Wins by
Model
Equity
Mkt
KO / TKO34%54%
Submission12%19%
Decision17%27%
Predicted output
Sig. strikes62 (3581)act 66
Takedowns1.0 (0.02.8)act 0
Van Buren37%
Wins by
Model
Equity
Mkt
KO / TKO19%52%
Submission7%18%
Decision11%30%
Predicted output
Sig. strikes65 (3785)act 100
Takedowns0.1 (0.00.5)act 0
Combined totals~127 sig strikes~1.1 takedownsmkt —
How it ends
mkt —
R142%
R214%
R316%
Distance28%
Fighter props
Most sig. strikestie 0.9%
O'Connell
47.5%+109
Van Buren
-10951.6%
Most takedownstie 21.9%
O'Connell
72.5%-1300
Van Buren
+13005.6%
Significant strikes — over/under
O'Connell
Expected: 62.2
62
Over 62
42.2%
+134
Exactly 62
1.1%
push
Under 62
56.7%
-134
078156
Van Buren
Expected: 65.0
65
Over 65
42.0%
+135
Exactly 65
1.0%
push
Under 65
56.9%
-135
082163
Takedowns — over/under
O'Connell
Expected: 1.0
1
Over 1
41.3%
-203
Exactly 1
38.5%
push
Under 1
20.3%
+203
035
Van Buren
Expected: 0.1
0
Over 0
14.9%
Exactly 0
85.1%
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 8.3 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
O'Connell62.8%68.8%−6.0-235
Van Buren37.2%31.2%+6.0+215

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
62.0Striking29.4
O'Connell +32.6
33.2Grappling0.0
O'Connell +33.2
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
O'ConnellVan Buren
Tale of the tape
Ratings (Elo)
1493
Pound-for-pound
1497
1493
Divisional
1497
1505
Striking offense
1498
1490
Striking defense
1493
1500
Grappling offense
1488
1501
Grappling defense
1490
Physical
31 yrs
Age
28 yrs
6'1"
Height
6'5"
74"
Reach
Orthodox
Stance
Striking (UFC career)
6.38
Strikes landed / min
1.97
49%
Strike accuracy
20%
5.81
Strikes absorbed / min
23.61
42%
Strike defense
35%
Grappling (UFC career)
0.00
Takedowns / 15 min
0.00
0%
Takedown accuracy
50%
Takedown defense
0%
1.5
Sub attempts / 15 min
0.0
Form & résumé
0%
UFC win rate
0%
-2
Win/loss streak
-1
0%
Last-5 win rate
0%
Finish rate
Recent opp. quality
204
Days since last fight
196
Recent form (last 5 UFC)
Sean O'Connell
  • LGian VillanteS-DEC R3
    Close +2457mo before
  • LRyan JimmoKO/TKO R1
    Close +5409mo before
Matt Van Buren
  • LCorey AndersonKO/TKO R1
    Close +2456mo before
O'Connell — win / loss by method
Record: 15-6-0

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
47% of wins
L
50% of losses
Submission
3 wins, 2 losses
W
20% of wins
L
33% of losses
Decision
5 wins, 1 loss
W
33% of wins
L
17% of losses
UFC
0win2loss0draw0NC
WinsLosses
0 ()KO/TKO(50%) 1
0 ()Submission(0%) 0
0 ()Decision(50%) 1
Non-UFC
15win4loss0draw0NC
WinsLosses
7 (47%)KO/TKO(50%) 2
3 (20%)Submission(50%) 2
5 (33%)Decision(0%) 0
Van Buren — win / loss by method
Record: 6-3-0

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, 2 losses
W
33% of wins
L
67% of losses
Submission
1 win, 1 loss
W
17% of wins
L
33% of losses
Decision
3 wins, 0 losses
W
50% of wins
L
0% of losses
UFC
0win1loss0draw0NC
WinsLosses
0 ()KO/TKO(100%) 1
0 ()Submission(0%) 0
0 ()Decision(0%) 0
Non-UFC
6win2loss0draw0NC
WinsLosses
2 (33%)KO/TKO(50%) 1
1 (17%)Submission(50%) 1
3 (50%)Decision(0%) 0

Profiles

Experience
O'Connell
Van Buren
2
UFC fights
1
19.4 min · 9.7 avg
Octagon time
1.0 min · 1.0 avg
19y 3m
Career length
16y 2m
UFC schedule strength

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

O'Connell
Van Buren
29W–8L · 78.4%
Overall
3W–0L · 100.0%
0W–0L
Wins
0W–0L
29W–8L · 78.4%
Losses
3W–0L · 100.0%
Non-UFC schedule strength
O'Connell
Van Buren
158W–90L · 63.7%
Overall
25W–15L · 62.5%
123W–77L · 61.5%
Wins
14W–10L · 58.3%
35W–13L · 72.9%
Losses
11W–5L · 68.8%
Distance striking
O'Connell
Van Buren
9.44
Landed / min
4.60
43.5%
Accuracy
22.2%
48.7%
Defense
35.7%
0.77
Knockdowns / 15 min
0.00
52.8%
Time at distance
42.8%
Grappling & control
O'Connell
Van Buren
0.00
Takedowns / 15 min
0.00
0.0%
Takedown accuracy
50.0%
Takedown defense
0.0%
1.54
Sub attempts / 15 min
0.00
90.4%
Control share
0.0%
Strike target map
O'Connell
  • Head61%(76)div 64%
  • Body21%(26)div 19%
  • Legs18%(22)div 17%
Van Buren
  • Head50%(1)div 64%
  • Body50%(1)div 19%
  • Legs0%(0)div 17%

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

Sean O'Connell
CloseSSTDKDCtrl

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

Matt Van Buren
CloseSSTDKDCtrl

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