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UFC Fight Night: Adesanya vs. Pyfer
Casey O'Neill
Casey O'Neill
10-2 · GBR
VS
March 28, 2026 · Seattle, Washington, USA
Flyweight · 3 rounds
Casey O'Neill def. Gabriella Fernandes by KO/TKO (Punches), R1 3:11
Performance
Round by round
SSTDKDCtrl
R1 · 3:11
O'Neill25/660/010:00
Fernandes8/330/000:00
Total
O'Neill25/660/010:00
Fernandes8/330/000:00

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'NeillWin probabilityFernandes
59.7%40.3%
KO / TKO
32%
Submission
23%
Decision
46%
Expected fight time: 9.8 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 O'Neill, blue toward Fernandes. Tap a bar for why.

Predicted outcomes
O'Neill60%
Wins by
Model
Equity
Mkt
KO / TKO20%34%10%
Submission13%21%10%
Decision27%45%31%
Predicted output
Sig. strikes54 (2373)act 25
Takedowns0.6 (0.02.5)act 0
Fernandes40%
Wins by
Model
Equity
Mkt
KO / TKO11%28%13%
Submission10%25%6%
Decision19%47%31%
Predicted output
Sig. strikes41 (1756)act 8
Takedowns0.6 (0.02.5)act 0
Combined totals~95 sig strikes~1.3 takedownsmkt —
How it ends
mkt —
R130%
R217%
R37%
Distance46%
Fighter props
Most sig. strikestie 1.0%
O'Neill
58.3%-143
Fernandes
+14340.7%
Most takedownstie 40.5%
O'Neill
29.6%+101
Fernandes
-10129.9%
Significant strikes — over/under
O'Neill
Expected: 53.9
54
Over 54
39.3%
+152
Exactly 54
0.9%
push
Under 54
59.8%
-152
068135
Fernandes
Expected: 41.0
41
Over 41
39.2%
+152
Exactly 41
1.2%
push
Under 41
59.6%
-152
052103
Takedowns — over/under
O'Neill
Expected: 0.6
0.5
Over 0.5
39.6%
+153
Under 0.5
60.4%
-153
035
Fernandes
Expected: 0.6
0.5
Over 0.5
39.9%
+150
Under 0.5
60.1%
-150
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 9.8 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'Neill59.7%52.6%+7.1-124
Fernandes40.3%47.4%−7.1+100
By method
O'Neill by KO/TKO18.9%10.1%+8.8+716
O'Neill by submission13.4%10.1%+3.3+716
O'Neill by decision27.4%30.8%−3.4+168
Fernandes by KO/TKO12.8%12.6%+0.2+555
Fernandes by submission9.1%5.6%+3.5+1382
Fernandes by decision18.4%30.7%−12.3+169
Total rounds (over)
Over 1.5 rds70.3%79.0%−8.7-542
Over 2.5 rds53.1%69.4%−16.3-291
Goes the distance
Fight goes to decision45.8%64.8%−19.0-226

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
70.5Striking57.2
O'Neill +13.3
51.6Grappling32.3
O'Neill +19.3
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
O'NeillFernandes
Tale of the tape
Ratings (Elo)
1556
Pound-for-pound
1537
1557
Divisional
1539
1525
Striking offense
1499
1489
Striking defense
1498
Grappling offense
Grappling defense
Physical
28 yrs
Age
32 yrs
5'6"
Height
5'6"
69"
Reach
66"
Orthodox
Stance
Southpaw
Striking (UFC career)
7.89
Strikes landed / min
3.56
53%
Strike accuracy
48%
5.65
Strikes absorbed / min
5.19
57%
Strike defense
52%
Grappling (UFC career)
1.45
Takedowns / 15 min
0.44
35%
Takedown accuracy
18%
70%
Takedown defense
69%
0.7
Sub attempts / 15 min
0.2
Form & résumé
71%
UFC win rate
60%
+1
Win/loss streak
+3
60%
Last-5 win rate
60%
60%
Finish rate
33%
Recent opp. quality
588
Days since last fight
231
Recent form (last 5 UFC)
Casey O'Neill
  • WLuana SantosU-DEC R3
    Close +1241y 7mo before
  • LAriane da SilvaSUB R2
    Close -1902y 3mo before
  • LJennifer MaiaU-DEC R3
    Close -1753y before
  • WRoxanne ModafferiS-DEC R3
    Close -3954y 1mo before
  • WAntonina ShevchenkoKO/TKO R2
    Close -2414y 6mo before
Gabriella Fernandes
  • WJulija StoliarenkoU-DEC R3
    Close -4528mo before
  • WWang CongSUB R2
    Close +7071y 4mo before
  • WCarli JudiceS-DEC R3
    Close -1641y 9mo before
  • LTereza BledaU-DEC R3
    Close +1932y 9mo before
  • LJasmine JasudaviciusU-DEC R3
    Close -1253y 1mo before
O'Neill — win / loss by method
Record: 10-2-0

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
3 wins, 0 losses
W
30% of wins
L
0% of losses
Submission
2 wins, 1 loss
W
20% of wins
L
50% of losses
Decision
5 wins, 1 loss
W
50% of wins
L
50% of losses
UFC
5win2loss0draw0NC
WinsLosses
2 (40%)KO/TKO(0%) 0
1 (20%)Submission(50%) 1
2 (40%)Decision(50%) 1
Non-UFC
5win0loss0draw0NC
WinsLosses
1 (20%)KO/TKO() 0
1 (20%)Submission() 0
3 (60%)Decision() 0
Fernandes — win / loss by method
Record: 11-3-0

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
3 wins, 0 losses
W
27% of wins
L
0% of losses
Submission
3 wins, 0 losses
W
27% of wins
L
0% of losses
Decision
5 wins, 3 losses
W
45% of wins
L
100% of losses
UFC
3win2loss0draw0NC
WinsLosses
0 (0%)KO/TKO(0%) 0
1 (33%)Submission(0%) 0
2 (67%)Decision(100%) 2
Non-UFC
8win1loss0draw0NC
WinsLosses
3 (38%)KO/TKO(0%) 0
2 (25%)Submission(0%) 0
3 (38%)Decision(100%) 1

Profiles

Experience
O'Neill
Fernandes
7
UFC fights
5
82.7 min · 11.8 avg
Octagon time
68.8 min · 13.8 avg
7y 4m
Career length
8y 4m
UFC schedule strength

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

O'Neill
Fernandes
89W–45L · 66.4%
Overall
33W–12L · 73.3%
53W–28L · 65.4%
Wins
19W–9L · 67.9%
36W–17L · 67.9%
Losses
14W–3L · 82.4%
Non-UFC schedule strength
O'Neill
Fernandes
14W–6L · 70.0%
Overall
36W–17L · 67.9%
14W–6L · 70.0%
Wins
33W–17L · 66.0%
0W–0L
Losses
3W–0L · 100.0%
Distance striking
O'Neill
Fernandes
10.90
Landed / min
5.61
49.4%
Accuracy
46.4%
61.4%
Defense
56.8%
0.00
Knockdowns / 15 min
0.22
58.2%
Time at distance
56.4%
Grappling & control
O'Neill
Fernandes
1.45
Takedowns / 15 min
0.44
34.8%
Takedown accuracy
18.2%
70.0%
Takedown defense
69.0%
0.73
Sub attempts / 15 min
0.22
68.1%
Control share
12.0%
Strike target map
O'Neill
  • Head77%(503)div 62%
  • Body14%(91)div 22%
  • Legs9%(58)div 16%
Fernandes
  • Head66%(161)div 62%
  • Body21%(51)div 22%
  • Legs13%(33)div 16%

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

Casey O'Neill
CloseSSTDKDCtrl

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

Gabriella Fernandes
CloseSSTDKDCtrl

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