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UFC 257: Poirier vs. McGregor
Julianna Pena
Julianna Pena
9-4 · USA
VS
Sara McMann
Sara McMann
12-5 · USA
January 23, 2021 · Abu Dhabi, Abu Dhabi, United Arab Emirates
Bantamweight · 3 rounds
136.0lb
Weigh-in
135.0lb
Julianna Pena def. Sara McMann by SUB (Rear Naked Choke), R3 3:39
Performance
Round by round
SSTDKDCtrl
R1
Pena5/200/000:00
McMann12/302/202:58
R2
Pena13/290/000:08
McMann8/171/104:11
R3 · 3:39
Pena20/271/102:47
McMann1/70/000:12
Total
Pena38/761/102:55
McMann21/543/307:21

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
PenaWin probabilityMcMann
56.9%43.1%
KO / TKO
18%
Submission
28%
Decision
54%
Expected fight time: 10.9 min
Retrospective pick: the walk-forward model's call at the time of the fight — persisted out-of-sample, with no hindsight about the result.
What drives the pick

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

Predicted outcomes
Pena57%
Wins by
Model
Equity
Mkt
KO / TKO12%21%10%
Submission15%26%12%
Decision30%53%24%
Predicted output
Sig. strikes29 (1240)act 38
Takedowns1.0 (0.03.3)act 1
McMann43%
Wins by
Model
Equity
Mkt
KO / TKO6%14%8%
Submission13%31%13%
Decision24%55%32%
Predicted output
Sig. strikes23 (931)act 21
Takedowns1.4 (0.04.1)act 3
Combined totals~52 sig strikes~2.4 takedownsmkt —
How it ends
mkt —
R120%
R219%
R37%
Distance54%
Fighter props
Most sig. strikestie 1.8%
Pena
57.0%-138
McMann
+13841.2%
Most takedownstie 22.5%
Pena
29.5%+163
McMann
-16348.0%
Significant strikes — over/under
Pena
Expected: 29.3
29.5
Over 29.5
39.4%
+154
Under 29.5
60.6%
-154
03774
McMann
Expected: 22.9
23
Over 23
38.5%
+155
Exactly 23
2.1%
push
Under 23
59.5%
-155
02958
Takedowns — over/under
Pena
Expected: 1.0
1
Over 1
33.9%
+138
Exactly 1
19.3%
push
Under 1
46.7%
-138
035
McMann
Expected: 1.4
1.5
Over 1.5
46.7%
+114
Under 1.5
53.3%
-114
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 10.9 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
Pena56.9%47.4%+9.5+100
McMann43.1%52.6%−9.5-125
By method
Pena by KO/TKO10.2%10.1%+0.1+700
Pena by submission15.9%12.4%+3.5+550
Pena by decision30.8%23.7%+7.1+240
McMann by KO/TKO7.7%8.1%−0.4+900
McMann by submission12.1%13.4%−1.3+500
McMann by decision23.3%32.3%−9.0+150
Total rounds (over)
Over 1.5 rds80.1%72.6%+7.5-350
Goes the distance
Fight goes to decision54.1%62.5%−8.4-200

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
68.1Striking60.2
Pena +7.9
54.9Grappling47.0
Pena +8.0
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
PenaMcMann
Tale of the tape
Ratings (Elo)
1546
Pound-for-pound
1540
1544
Divisional
1541
1479
Striking offense
1459
1507
Striking defense
1530
1522
Grappling offense
1528
1486
Grappling defense
1505
Physical
31 yrs
Age
40 yrs
5'6"
Height
5'6"
69"
Reach
66"
Orthodox
Stance
Orthodox
Striking (UFC career)
2.80
Strikes landed / min
2.25
47%
Strike accuracy
44%
1.73
Strikes absorbed / min
2.01
51%
Strike defense
43%
Grappling (UFC career)
2.73
Takedowns / 15 min
3.15
52%
Takedown accuracy
51%
29%
Takedown defense
0%
0.8
Sub attempts / 15 min
0.6
Form & résumé
71%
UFC win rate
55%
-1
Win/loss streak
+1
60%
Last-5 win rate
60%
40%
Finish rate
50%
Recent opp. quality
112
Days since last fight
364
Recent form (last 5 UFC)
Julianna Pena
  • LGermaine de RandamieSUB R3
    Close +1224mo before
  • WNicco MontanoU-DEC R3
    Close -2501y 6mo before
  • LValentina ShevchenkoSUB R2
    Close +1604y before
  • WCat ZinganoU-DEC R3
    Close +1554y 7mo before
  • WJessica EyeU-DEC R3
    Close -2605y 4mo before
Sara McMann
  • WLina LansbergU-DEC R3
    Close -1251y before
  • LMarion ReneauSUB R2
    Close -1902y 11mo before
  • LKetlen VieiraSUB R2
    Close -2003y 4mo before
  • WGina MazanySUB R1
    Close -8003y 11mo before
  • WAlexis DavisSUB R2
    Close -1554y 2mo before
Pena — win / loss by method
Record: 9-4-0

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
3 wins, 1 loss
W
33% of wins
L
25% of losses
Submission
3 wins, 2 losses
W
33% of wins
L
50% of losses
Decision
3 wins, 1 loss
W
33% of wins
L
25% of losses
UFC
5win2loss0draw0NC
WinsLosses
2 (40%)KO/TKO(0%) 0
0 (0%)Submission(100%) 2
3 (60%)Decision(0%) 0
Non-UFC
4win2loss0draw0NC
WinsLosses
1 (25%)KO/TKO(50%) 1
3 (75%)Submission(0%) 0
0 (0%)Decision(50%) 1
McMann — win / loss by method
Record: 12-5-0

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
2 wins, 1 loss
W
17% of wins
L
20% of losses
Submission
4 wins, 3 losses
W
33% of wins
L
60% of losses
Decision
6 wins, 1 loss
W
50% of wins
L
20% of losses
UFC
6win5loss0draw0NC
WinsLosses
1 (17%)KO/TKO(20%) 1
2 (33%)Submission(60%) 3
3 (50%)Decision(20%) 1
Non-UFC
6win0loss0draw0NC
WinsLosses
1 (17%)KO/TKO() 0
2 (33%)Submission() 0
3 (50%)Decision() 0

Profiles

Experience
Pena
McMann
7
UFC fights
11
76.9 min · 11.0 avg
Octagon time
95.1 min · 8.6 avg
17y 3m
Career length
15y 2m
UFC schedule strength

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

Pena
McMann
58W–18L · 76.3%
Overall
107W–30L · 78.1%
36W–12L · 75.0%
Wins
58W–18L · 76.3%
22W–6L · 78.6%
Losses
49W–12L · 80.3%
Non-UFC schedule strength
Pena
McMann
6W–2L · 75.0%
Overall
45W–23L · 66.2%
4W–2L · 66.7%
Wins
45W–23L · 66.2%
2W–0L · 100.0%
Losses
0W–0L
Distance striking
Pena
McMann
4.08
Landed / min
3.11
26.6%
Accuracy
25.1%
59.1%
Defense
62.0%
0.00
Knockdowns / 15 min
0.16
16.9%
Time at distance
24.0%
Grappling & control
Pena
McMann
2.73
Takedowns / 15 min
3.15
51.9%
Takedown accuracy
51.3%
28.6%
Takedown defense
0.0%
0.78
Sub attempts / 15 min
0.63
58.9%
Control share
77.0%
Strike target map
Pena
  • Head68%(147)div 64%
  • Body26%(55)div 20%
  • Legs6%(13)div 16%
McMann
  • Head66%(141)div 64%
  • Body25%(54)div 20%
  • Legs9%(19)div 16%

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

Julianna Pena
CloseSSTDKDCtrl

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

Sara McMann
CloseSSTDKDCtrl

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