The Ultimate Fight Fan
+ Log a bet
UFC 163: Aldo vs Jung
Amanda Nunes
Amanda Nunes
7-3 · BRA
VS
Sheila Gaff
Sheila Gaff
8-5 · DEU
August 3, 2013 · Rio de Janeiro, Brazil
Bantamweight · 3 rounds
136.0lb
Weigh-in
135.0lb
Amanda Nunes def. Sheila Gaff by KO/TKO (Elbows), R1 2:08
Performance
Round by round
SSTDKDCtrl
R1 · 2:08
Nunes10/162/301:37
Gaff3/80/000:12
Total
Nunes10/162/301:37
Gaff3/80/000:12

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
NunesWin probabilityGaff
84.1%15.9%
KO / TKO
26%
Submission
50%
Decision
24%
Expected fight time: 7.3 min
What drives the pick

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

Predicted outcomes
Nunes84%
Wins by
Model
Equity
Mkt
KO / TKO23%28%
Submission40%48%
Decision21%24%
Predicted output
Sig. strikes57 (3274)act 10
Takedowns1.6 (0.23.6)act 2
Gaff16%
Wins by
Model
Equity
Mkt
KO / TKO3%20%
Submission9%58%
Decision4%22%
Predicted output
Sig. strikes29 (1638)act 3
Takedowns0.0 (0.00.2)act 0
Combined totals~86 sig strikes~1.6 takedownsmkt —
How it ends
mkt —
R154%
R28%
R314%
Distance24%
Fighter props
Most sig. strikestie 1.0%
Nunes
77.0%-351
Gaff
+35121.9%
Most takedownstie 5.5%
Nunes
93.4%-8455
Gaff
+84551.1%
Significant strikes — over/under
Nunes
Expected: 56.9
57
Over 57
41.8%
+137
Exactly 57
1.2%
push
Under 57
57.0%
-137
072143
Gaff
Expected: 29.5
29.5
Over 29.5
42.4%
+136
Under 29.5
57.6%
-136
03774
Takedowns — over/under
Nunes
Expected: 1.6
1.5
Over 1.5
59.1%
-145
Under 1.5
40.9%
+145
035
Gaff
Expected: 0.0
0
Over 0
11.8%
Exactly 0
88.2%
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 7.3 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
Nunes84.1%64.9%+19.2-195
Gaff15.9%35.1%−19.2+180

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
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
NunesGaff
Tale of the tape
Ratings (Elo)
1510
Pound-for-pound
1489
1510
Divisional
1489
Striking offense
Striking defense
1561
Grappling offense
1492
1558
Grappling defense
1494
Physical
25 yrs
Age
23 yrs
5'8"
Height
5'5"
69"
Reach
Orthodox
Stance
Orthodox
Striking (UFC career)
Strikes landed / min
1.71
Strike accuracy
58%
Strikes absorbed / min
1.95
Strike defense
11%
Grappling (UFC career)
Takedowns / 15 min
0.00
Takedown accuracy
Takedown defense
0%
Sub attempts / 15 min
0.0
Form & résumé
UFC win rate
0%
Win/loss streak
-1
Last-5 win rate
0%
Finish rate
Recent opp. quality
Days since last fight
98
Recent form (last 5 UFC)
Amanda Nunes
No prior UFC fights.
Sheila Gaff
  • LSara McMannKO/TKO R1
    Close +4803mo before
Nunes — win / loss by method
Record: 7-3-0

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
6 wins, 1 loss
W
86% of wins
L
33% of losses
Submission
1 win, 1 loss
W
14% of wins
L
33% of losses
Decision
0 wins, 1 loss
W
0% of wins
L
33% of losses
UFC
0win0loss0draw0NC
WinsLosses
0 ()KO/TKO() 0
0 ()Submission() 0
0 ()Decision() 0
Non-UFC
7win3loss0draw0NC
WinsLosses
6 (86%)KO/TKO(33%) 1
1 (14%)Submission(33%) 1
0 (0%)Decision(33%) 1
Gaff — win / loss by method
Record: 8-5-0

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
4 wins, 1 loss
W
50% of wins
L
20% of losses
Submission
4 wins, 2 losses
W
50% of wins
L
40% of losses
Decision
0 wins, 1 loss
W
0% of wins
L
20% of losses
DQ / other
0 wins, 1 loss
W
0% of wins
L
20% of losses
UFC
0win1loss0draw0NC
WinsLosses
0 ()KO/TKO(100%) 1
0 ()Submission(0%) 0
0 ()Decision(0%) 0
Non-UFC
8win4loss0draw0NC
WinsLosses
4 (50%)KO/TKO(0%) 0
4 (50%)Submission(50%) 2
0 (0%)Decision(25%) 1
0 (0%)DQ / other(25%) 1

Profiles

Experience
Nunes
Gaff
0
UFC fights
1
Octagon time
4.1 min · 4.1 avg
Career length
19y 10m
UFC schedule strength

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

Nunes
Gaff
Overall
6W–0L · 100.0%
Wins
0W–0L
Losses
6W–0L · 100.0%
Non-UFC schedule strength
Nunes
Gaff
37W–15L · 71.2%
Overall
31W–4L · 88.6%
20W–7L · 74.1%
Wins
20W–2L · 90.9%
17W–8L · 68.0%
Losses
11W–2L · 84.6%
Distance striking
Nunes
Gaff
Landed / min
8.24
Accuracy
25.0%
Defense
50.0%
Knockdowns / 15 min
0.00
Time at distance
3.0%
Grappling & control
Nunes
Gaff
Takedowns / 15 min
0.00
Takedown accuracy
Takedown defense
0.0%
Sub attempts / 15 min
0.00
Control share
0.4%
Strike target map
Nunes
  • Head0%(0)div 63%
  • Body0%(0)div 23%
  • Legs0%(0)div 14%
  • No strike data on record.
Gaff
  • Head14%(1)div 63%
  • Body86%(6)div 23%
  • Legs0%(0)div 14%

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

Amanda Nunes

No UFC fights on record.

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

Sheila Gaff
CloseSSTDKDCtrl

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