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UFC 311: Makhachev vs. Moicano
Ailin Perez
Ailin Perez
11-2 · ARG
VS
Karol Rosa
Karol Rosa
18-6 · BRA
January 18, 2025 · Inglewood, California, USA
Bantamweight · 3 rounds
135.0lb
Weigh-in
135.5lb
Ailin Perez def. Karol Rosa by U-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
Perez13/231/402:08
Rosa18/250/000:00
R2
Perez16/411/301:50
Rosa11/330/000:00
R3
Perez33/670/100:17
Rosa24/540/000:00
Total
Perez62/1312/804:15
Rosa53/1120/000:00

Scorecards

Perez vs Rosa

RdChris CrailJonathan RomeroSal D'AmatoCommunity
R110-910-910-99.8-9.2
R210-910-910-99.8-9.2
R310-99-109-109.1-9.9
Total30-2729-2829-2828.7-28.3

Media (11 cards) · avg 2928 · 11 Perez · 0 Rosa

Official cards + public consensus via MMA Decisions. Per round: Perez-Rosa.

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
PerezWin probabilityRosa
51.1%48.9%
KO / TKO
32%
Submission
14%
Decision
53%
Expected fight time: 10.4 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 Perez, blue toward Rosa. Tap a bar for why.

Predicted outcomes
Perez51%
Wins by
Model
Equity
Mkt
KO / TKO18%36%
Submission9%18%
Decision24%46%
Predicted output
Sig. strikes40 (1755)act 62
Takedowns1.3 (0.03.8)act 2
Rosa49%
Wins by
Model
Equity
Mkt
KO / TKO14%28%
Submission5%11%
Decision30%61%
Predicted output
Sig. strikes39 (1653)act 53
Takedowns0.6 (0.02.3)act 0
Combined totals~80 sig strikes~1.8 takedownsmkt —
How it ends
mkt —
R127%
R215%
R35%
Distance53%
Fighter props
Most sig. strikestie 1.2%
Perez
49.9%-102
Rosa
+10248.9%
Most takedownstie 25.0%
Perez
54.1%-259
Rosa
+25920.9%
Significant strikes — over/under
Perez
Expected: 40.3
40.5
Over 40.5
39.5%
+153
Under 40.5
60.5%
-153
051101
Rosa
Expected: 39.4
39.5
Over 39.5
39.6%
+152
Under 39.5
60.4%
-152
05099
Takedowns — over/under
Perez
Expected: 1.3
1.5
Over 1.5
45.1%
+122
Under 1.5
54.9%
-122
035
Rosa
Expected: 0.6
0.5
Over 0.5
41.2%
+143
Under 0.5
58.8%
-143
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 10.4 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
Perez51.1%31.6%+19.5+205
Rosa48.9%68.4%−19.5-245

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
76.9Striking72.1
Perez +4.7
70.0Grappling46.0
Perez +24.0
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
PerezRosa
Tale of the tape
Ratings (Elo)
1561
Pound-for-pound
1566
1576
Divisional
1569
1495
Striking offense
1521
1522
Striking defense
1488
1518
Grappling offense
1493
1490
Grappling defense
1533
Physical
30 yrs
Age
30 yrs
5'5"
Height
5'5"
66"
Reach
67"
Switch
Stance
Orthodox
Striking (UFC career)
2.84
Strikes landed / min
6.49
58%
Strike accuracy
57%
1.34
Strikes absorbed / min
4.91
58%
Strike defense
50%
Grappling (UFC career)
5.36
Takedowns / 15 min
1.20
51%
Takedown accuracy
46%
67%
Takedown defense
68%
0.3
Sub attempts / 15 min
0.0
Form & résumé
80%
UFC win rate
70%
+4
Win/loss streak
+1
80%
Last-5 win rate
60%
25%
Finish rate
0%
Recent opp. quality
112
Days since last fight
161
Recent form (last 5 UFC)
Ailin Perez
  • WDaria ZhelezniakovaSUB R1
    Close -2244mo before
  • WJoselyne EdwardsU-DEC R3
    Close -2108mo before
  • WLucie PudilovaU-DEC R3
    Close -1891y 2mo before
  • WAshlee Evans-SmithU-DEC R3
    Close -2541y 6mo before
  • LStephanie EggerSUB R2
    Close +2092y 5mo before
Karol Rosa
  • WPannie KianzadU-DEC R3
    Close -2655mo before
  • LIrene AldanaU-DEC R3
    Close +1501y 1mo before
  • WYana SantosS-DEC R3
    Close -1831y 7mo before
  • LNorma DumontU-DEC R3
    Close -1031y 9mo before
  • WLina LansbergM-DEC R3
    Close -3782y 3mo before
Perez — win / loss by method
Record: 11-2-0

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
4 wins, 0 losses
W
36% of wins
L
0% of losses
Submission
2 wins, 1 loss
W
18% of wins
L
50% of losses
Decision
5 wins, 0 losses
W
45% of wins
L
0% of losses
DQ / other
0 wins, 1 loss
W
0% of wins
L
50% of losses
UFC
4win1loss0draw0NC
WinsLosses
0 (0%)KO/TKO(0%) 0
1 (25%)Submission(100%) 1
3 (75%)Decision(0%) 0
Non-UFC
7win1loss0draw0NC
WinsLosses
4 (57%)KO/TKO(0%) 0
1 (14%)Submission(0%) 0
2 (29%)Decision(0%) 0
0 (0%)DQ / other(100%) 1
Rosa — win / loss by method
Record: 18-6-0

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
4 wins, 0 losses
W
22% of wins
L
0% of losses
Submission
2 wins, 2 losses
W
11% of wins
L
33% of losses
Decision
12 wins, 4 losses
W
67% of wins
L
67% of losses
UFC
7win3loss0draw0NC
WinsLosses
0 (0%)KO/TKO(0%) 0
0 (0%)Submission(0%) 0
7 (100%)Decision(100%) 3
Non-UFC
11win3loss0draw0NC
WinsLosses
4 (36%)KO/TKO(0%) 0
2 (18%)Submission(67%) 2
5 (45%)Decision(33%) 1

Profiles

Experience
Perez
Rosa
5
UFC fights
10
58.8 min · 11.8 avg
Octagon time
150.0 min · 15.0 avg
7y 8m
Career length
14y 4m
UFC schedule strength

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

Perez
Rosa
49W–23L · 68.1%
Overall
111W–50L · 68.9%
42W–20L · 67.7%
Wins
77W–35L · 68.8%
7W–3L · 70.0%
Losses
34W–15L · 69.4%
Non-UFC schedule strength
Perez
Rosa
18W–15L · 54.5%
Overall
48W–18L · 72.7%
14W–14L · 50.0%
Wins
29W–13L · 69.0%
4W–1L · 80.0%
Losses
19W–5L · 79.2%
Distance striking
Perez
Rosa
4.98
Landed / min
9.85
43.4%
Accuracy
53.3%
69.2%
Defense
52.5%
0.26
Knockdowns / 15 min
0.20
20.2%
Time at distance
53.1%
Grappling & control
Perez
Rosa
5.36
Takedowns / 15 min
1.20
51.2%
Takedown accuracy
46.2%
66.7%
Takedown defense
68.4%
0.26
Sub attempts / 15 min
0.00
61.9%
Control share
64.5%
Strike target map
Perez
  • Head65%(109)div 62%
  • Body22%(36)div 21%
  • Legs13%(22)div 16%
Rosa
  • Head59%(574)div 62%
  • Body13%(123)div 21%
  • Legs28%(276)div 16%

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

Ailin Perez
CloseSSTDKDCtrl

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

Karol Rosa
CloseSSTDKDCtrl

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