UFC 331: Van vs. Pantoja 2 · Women's Flyweight · 3 rounds
Opening locked Aug 19, 2026 · Casey O'Neill 86% · Decision · Distance · waiting on the result

AustraliaCasey O'Neill
“King”
Unranked · 11-2 · striker · Orthodox · 28 · IQ B 69
Xtreme Couture · Australia
Casey O'Neill
85.6%
Eduarda Moura
14.4%
Model win probability · confidence 86%
No market posted yet.
Why the model leans this way
Casey O'Neill is the model side at 85.6% because the largest live edges sit where this fight is likely to be fought. Grappler historical edge: Moura (ground 60) into O'Neill (TD reaction 49). Punching agility is the clearest separator: O'Neill 84 (A) vs Moura 42 (D). Hand speed / output lean O'Neill (7.9 SLpM at 58%).
Punching agility
O'NeillO'Neill 84 (A) vs Moura 42 (D). Hand speed / output lean O'Neill (7.9 SLpM at 58%).
Takedown reaction
MouraMoura 74 (B) vs O'Neill 49 (D). When the shot comes, Moura stuffs it at 80% — O'Neill is at 79%.
Ground game
MouraMoura 60 (C+) vs O'Neill 41 (D). Moura brings 3.7 TD/15 and 5 sub wins into O'Neill's 79% takedown defense.
Counter punching
O'NeillO'Neill 52 (C) vs Moura 41 (D). O'Neill's return is the live one (0.65 KD/15, 5 KOs) against Moura's entries.
Path · O'Neill
O'Neill has to stuff the first takedown (49 TD-reaction), keep this standing, and hunt a pocket that grades 68 on defense. Wrestling is the death lane.
Path · Moura
Moura has to wrestle early, chain the second shot, and make O'Neill defend the neck instead of throwing. It is the only reliable flip if the pocket goes cold.
This is a firm lean, not a lock. The upset script is Moura attacking ground game with durability.
Style and location. Wrestling entries, fence control, and mat time should decide the scorecards — or the finish. O'Neill is built as: Power striker — suspect hips against the shot. Moura is built as: Hybrid who can change levels. Fight IQ delta is -5 toward Moura — that is composure, win-lane diversity, and whether they solve a second problem when the first look dies.
The edges that move the number. Punching agility: O'Neill 84 (A) vs Moura 42 (D). Hand speed / output lean O'Neill (7.9 SLpM at 58%). Takedown reaction: Moura 74 (B) vs O'Neill 49 (D). When the shot comes, Moura stuffs it at 80% — O'Neill is at 79%. Ground game: Moura 60 (C+) vs O'Neill 41 (D). Moura brings 3.7 TD/15 and 5 sub wins into O'Neill's 79% takedown defense.
The finish path leans strikes (33% KO/TKO vs 26% submission). One clean read in the pocket can flip a close card. This is a firm lean, not a lock. The upset script is Moura attacking ground game with durability. These trait marks are derived from FightMetric rates, career method shares, and loaded bout rows — reaction time and agility are proxies, not stopwatch numbers. The model folds the same scores into win probability, so a hole on this card is a hole in the percentage.
Fight IQ, ground game, defense, counter punching, reaction, agility, and takedown reaction — scored from tape and folded into the win number above.
Wrestling entries, fence control, and mat time should decide the scorecards — or the finish.
R1
30%
R2
15%
R3
13%
Dist
42%
Most likely: Distance. Expected 9.7 minutes.
Grappler historical edge: Moura (ground 60) into O'Neill (TD reaction 49).
Striking differential
5.96 vs -0.22 SLpM−SApM (recency / opp. adjusted)
Damage ratio
4.44 vs 0.92 landed/absorbed
Output (SLpM)
7.69 vs 2.67
Punching agility
Output × accuracy × age curve
Takedown reaction
79% vs 80% hips on the shot
Ground game (tape)
41 vs 60
Striking efficiency
51% vs 37%
Striking defense
53% vs 63%
Grappling composite
TD avg × acc × def + control + submission threat (adj.)
Recency form
Opp.-adjusted last 6/6 UFC rows
Counter punching
52 vs 41
Fight IQ
B 69 vs B 75 — composure, win-lane diversity, adjustments
Style interaction
Grappler historical edge: Moura (ground 60) into O'Neill (TD reaction 49).
Pocket defense (tape)
B vs B
Reach / length
69.0" vs 67.0"
Timing & reaction
Defense + absorb + knockdown timing proxy
Strength of schedule
Opp. quality 56 vs 62
Age-adjusted curve
28 vs 32
Cardio proxy
Output sustainability + distance rate
Durability
0 vs 0 KO losses
Takedown mismatch
TD def 81% vs 80%
Layoff / rust
Time since last fight
Championship / 5-round
Three-round fight
Fighter 4871203
KO/TKO · R1 3:11
Fighter 5110469
Decision - Unanimous · R3 5:00
Fighter 4227318
Submission · R2 1:18
Jennifer Maia
Decision - Unanimous · R3 5:00
Fighter 2504943
Decision - Split · R3 5:00
Fighter 4339152
KO/TKO · R2 4:47
Fighter 4215200
Decision - Unanimous · R3 5:00
Lauren Murphy
Decision - Unanimous · R3 5:00
Fighter 4044708
Decision - Unanimous · R3 5:00
Denise Gomes
Decision - Split · R3 5:00
Fighter 4399703
KO/TKO · R2 2:14
Fighter 5143887
Submission · R1 4:00
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