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UFC Fight Night: Moreno vs. Kavanagh
Ailin Perez
Ailin Perez
12-2 · ARG
VS
Macy Chiasson
Macy Chiasson
10-5 · USA
February 28, 2026 · Mexico City, Distrito Federal, Mexico
Bantamweight · 3 rounds
136.0lb
Weigh-in
135.0lb
Ailin Perez def. Macy Chiasson by U-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
Perez6/72/201:19
Chiasson4/50/002:48
R2
Perez13/203/501:56
Chiasson1/140/200:53
R3
Perez8/111/304:21
Chiasson3/40/000:10
Total
Perez27/386/1007:36
Chiasson8/230/203:51

Scorecards

Perez vs Chiasson

RdDave TirelliRaul SalasSal D'AmatoCommunity
R19-109-109-109.1-9.9
R210-910-910-99.9-9.1
R310-910-910-910-9
Total29-2829-2829-2829-28

Media (13 cards) · avg 2928 · 13 Perez · 0 Chiasson

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

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 probabilityChiasson
58.1%41.9%
KO / TKO
26%
Submission
32%
Decision
42%
Expected fight time: 9.5 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 Chiasson. Tap a bar for why.

Predicted outcomes
Perez58%
Wins by
Model
Equity
Mkt
KO / TKO14%25%10%
Submission17%29%8%
Decision27%46%44%
Predicted output
Sig. strikes30 (1241)act 27
Takedowns1.4 (0.04.0)act 6
Chiasson42%
Wins by
Model
Equity
Mkt
KO / TKO12%29%8%
Submission15%35%10%
Decision15%36%20%
Predicted output
Sig. strikes26 (1035)act 8
Takedowns0.6 (0.02.3)act 0
Combined totals~56 sig strikes~1.9 takedownsmkt —
How it ends
mkt —
R128%
R224%
R36%
Distance42%
Fighter props
Most sig. strikestie 1.7%
Perez
54.5%-124
Chiasson
+12443.9%
Most takedownstie 25.1%
Perez
54.3%-263
Chiasson
+26320.6%
Significant strikes — over/under
Perez
Expected: 30.3
30.5
Over 30.5
39.4%
+154
Under 30.5
60.6%
-154
03876
Chiasson
Expected: 25.7
25.5
Over 25.5
40.1%
+150
Under 25.5
59.9%
-150
03365
Takedowns — over/under
Perez
Expected: 1.4
1.5
Over 1.5
46.2%
+116
Under 1.5
53.8%
-116
035
Chiasson
Expected: 0.6
0.5
Over 0.5
40.8%
+145
Under 0.5
59.2%
-145
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 9.5 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
Perez58.1%62.2%−4.1-187
Chiasson41.9%37.8%+4.1+153
By method
Perez by KO/TKO15.3%9.8%+5.5+758
Perez by submission18.4%8.0%+10.4+958
Perez by decision24.4%43.6%−19.2-107
Chiasson by KO/TKO11.0%8.0%+3.0+961
Chiasson by submission13.3%10.2%+3.1+724
Chiasson by decision17.6%20.4%−2.8+314
Total rounds (over)
Over 1.5 rds71.5%78.5%−7.0-526
Over 2.5 rds47.7%70.0%−22.3-297
Goes the distance
Fight goes to decision42.1%67.3%−25.2-255

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
73.8Striking63.4
Perez +10.4
65.8Grappling52.9
Perez +12.8
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
PerezChiasson
Tale of the tape
Ratings (Elo)
1577
Pound-for-pound
1544
1591
Divisional
1564
1495
Striking offense
1502
1516
Striking defense
1504
1522
Grappling offense
1521
1494
Grappling defense
1496
Physical
31 yrs
Age
34 yrs
5'5"
Height
5'11"
66"
Reach
72"
Switch
Stance
Orthodox
Striking (UFC career)
3.10
Strikes landed / min
3.50
55%
Strike accuracy
46%
1.79
Strikes absorbed / min
2.86
56%
Strike defense
46%
Grappling (UFC career)
4.68
Takedowns / 15 min
2.07
47%
Takedown accuracy
37%
67%
Takedown defense
73%
0.2
Sub attempts / 15 min
0.4
Form & résumé
83%
UFC win rate
62%
+5
Win/loss streak
-2
100%
Last-5 win rate
40%
20%
Finish rate
63%
Recent opp. quality
406
Days since last fight
147
Recent form (last 5 UFC)
Ailin Perez
  • WKarol RosaU-DEC R3
    Close +2051y 1mo before
  • WDaria ZhelezniakovaSUB R1
    Close -2241y 5mo before
  • WJoselyne EdwardsU-DEC R3
    Close -2101y 9mo before
  • WLucie PudilovaU-DEC R3
    Close -1892y 3mo before
  • WAshlee Evans-SmithU-DEC R3
    Close -2542y 8mo before
Macy Chiasson
  • LYana SantosU-DEC R3
    Close -2065mo before
  • LKetlen VieiraU-DEC R3
    opp missedClose -1469mo before
  • WMayra Bueno SilvaKO/TKO R2
    Close -1141y 8mo before
  • WPannie KianzadSUB R1
    Close -2301y 11mo before
  • LIrene AldanaKO/TKO R3
    Close +1513y 6mo before
Perez — win / loss by method
Record: 12-2-0

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
33% of wins
L
0% of losses
Submission
2 wins, 1 loss
W
17% of wins
L
50% of losses
Decision
6 wins, 0 losses
W
50% of wins
L
0% of losses
DQ / other
0 wins, 1 loss
W
0% of wins
L
50% of losses
UFC
5win1loss0draw0NC
WinsLosses
0 (0%)KO/TKO(0%) 0
1 (20%)Submission(100%) 1
4 (80%)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
Chiasson — win / loss by method
Record: 10-5-0

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
3 wins, 1 loss
W
30% of wins
L
20% of losses
Submission
3 wins, 1 loss
W
30% of wins
L
20% of losses
Decision
4 wins, 3 losses
W
40% of wins
L
60% of losses
UFC
8win5loss0draw0NC
WinsLosses
3 (38%)KO/TKO(20%) 1
2 (25%)Submission(20%) 1
3 (38%)Decision(60%) 3
Non-UFC
2win0loss0draw0NC
WinsLosses
0 (0%)KO/TKO() 0
1 (50%)Submission() 0
1 (50%)Decision() 0

Profiles

Experience
Perez
Chiasson
6
UFC fights
13
73.8 min · 12.3 avg
Octagon time
137.7 min · 10.6 avg
7y 8m
Career length
8y 9m
UFC schedule strength

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

Perez
Chiasson
67W–29L · 69.8%
Overall
134W–59L · 69.4%
60W–26L · 69.8%
Wins
70W–29L · 70.7%
7W–3L · 70.0%
Losses
64W–30L · 68.1%
Non-UFC schedule strength
Perez
Chiasson
18W–15L · 54.5%
Overall
1W–0L · 100.0%
14W–14L · 50.0%
Wins
1W–0L · 100.0%
4W–1L · 80.0%
Losses
0W–0L
Distance striking
Perez
Chiasson
5.18
Landed / min
4.92
44.7%
Accuracy
34.9%
62.5%
Defense
55.4%
0.20
Knockdowns / 15 min
0.22
30.1%
Time at distance
34.8%
Grappling & control
Perez
Chiasson
4.68
Takedowns / 15 min
2.07
46.9%
Takedown accuracy
37.3%
66.7%
Takedown defense
72.7%
0.20
Sub attempts / 15 min
0.44
65.2%
Control share
61.7%
Strike target map
Perez
  • Head60%(137)div 62%
  • Body21%(47)div 21%
  • Legs20%(45)div 16%
Chiasson
  • Head55%(264)div 62%
  • Body35%(169)div 21%
  • Legs10%(49)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.

Macy Chiasson
CloseSSTDKDCtrl

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