Casey O'Neill
Skill profile
138 MMA anchors Striking, Wrestling, Grappling · his tags and claims adjust Accuracy, TD Defense, Control · stats alone on Striking D, Durability.
Built on 89 minutes of tracked cage time across 9 statted fights — every axis is held down until there is more tape, so read this as a sketch rather than a verdict.
Career rates — the raw numbers behind the chart
Insider info
vs Eduarda Moura lean UFC 331 Full Card Preview & Predictions · September 16, 2026
admits that "skill by skill" he would pick Moura
Called the better pure striker of the two, with a heavy double-jab and real punching volume that should win the fight if it stays standing. Also credited as a good enough grappler to land powerful takedowns and control from the top, with the edge in cardio late.
vs Gabriella Fernandes coinflip UFC Fight Night Adesanya vs Pyfer Full Card Preview & Predictions · March 22, 2026 · 1 read since
stay away, really unsure
A decent striker who comes forward behind a good one-two with good volume, but her real strength is grappling: decent takedowns that she often has to muscle rather than finesse, decent sweeps from the bottom, and good top control. The analyst says if she gets the takedown she probably wins this fight. She has fought very rarely in recent years, which he flags as a real wrinkle -- he has not seen her fight and does not know what to expect.
vs Luana Santos clear UFC 305 Full Card Analysis, Prediction & Breakdown · August 14, 2024 · 2 reads since
Picks Santos on a specific mechanism -- O'Neill's aggression plays into Santos's judo-based throws, so Santos should get early takedowns and put O'Neill 'in trouble.' No hedge on the outcome itself beyond the ordinary uncertainty about O'Neill's post-injury form.
Returning fighter (coming off injuries) with a grappling-first game -- a self-corrected 'good' (not just decent) overall grappling read, very good top control, and decent sweeps, though her takedowns themselves are marked down specifically because she has to muscle them rather than finish them cleanly. Her striking is high-volume with sharp 1-2s but is not where her power lives.
vs Ariane Lipski lean UFC 296 Full Card Breakdown, Prediction, & Analysis · December 12, 2023 · 3 reads since
stay on top, stay safe
Our paraphrase: O'Neill has been relatively inactive lately because of knee injuries, but the analyst rates her as aggressive and forward-moving on the feet and in the grappling, landing volume and getting good top control once a takedown lands, with a good sweep available from the bottom if needed. The pick leans on her being able to get Lipski down and keep her there, where Lipski is vulnerable.
vs Jennifer Maia coinflip UFC 286 Full Card Breakdown, Analysis, And Prediction · March 14, 2023 · 4 reads since
not confident whatsoever, switched pick
O'Neill is an aggressive, high-volume striker whose real path to winning is her wrestling, using it to out-muscle opponents to the mat and control from top position. If she ends up on the bottom instead she can sweep or scramble back up rather than staying stuck there. Her last win, over Roxanna Fury, is read as a lesser name than Maia, which the analyst treats as a genuine step up in competition here.
Striking trend
Fight history
W Eduarda Moura 3-2 walk-in Submission · R1 3:22 — UFC 331: Van vs. Pantoja 2 · September 19, 2026
W Gabriella Fernandes 3-2 walk-in KO/TKO · R1 3:11 — UFC Fight Night: Adesanya vs. Pyfer · March 28, 2026
W Luana Santos 8-0 walk-in Decision - Unanimous · R3 5:00 — UFC 305: Du Plessis vs. Adesanya · August 17, 2024
L Ariane da Silva 16-8 walk-in Submission · R2 1:18 — UFC 296: Edwards vs. Covington · December 16, 2023
L Jennifer Maia 20-9-1 walk-in Decision - Unanimous · R3 5:00 — UFC 286: Edwards vs. Usman 3 · March 18, 2023
W Roxanne Modafferi 25-19 walk-in Decision - Split · R3 5:00 — UFC 271: Adesanya vs. Whittaker 2 · February 12, 2022
W Antonina Shevchenko 9-3 walk-in KO/TKO · R2 4:47 — UFC Fight Night: Santos vs. Walker · October 2, 2021
W Lara Procopio 7-1 walk-in Submission · R3 2:54 — UFC Fight Night: Jung vs. Ige · June 19, 2021
W Shana Dobson 4-4 walk-in KO/TKO · R2 3:41 — UFC Fight Night: Blaydes vs. Lewis · February 20, 2021
Walk-in records count UFC bouts in this database. For the pre-UFC career, see the record breakdown below or the Tapology button up top.
Record breakdown
Wins by method
Losses by method
Fights by organization
Full career — 13 fights, every organization
| Opponent | Method | Event | Org | Rd | Time | |
|---|---|---|---|---|---|---|
| W | Gabriella Fernandes | KO (punches) | UFC Fight Night: Adesanya vs. Pyfer
March 28, 2026 |
UFC | 1 | 3:11 |
| W | Luana Santos | Decision (unanimous) | UFC 305
August 18, 2024 |
UFC | 3 | 5:00 |
| L | Ariane Lipski | Submission (armbar) | UFC 296
December 16, 2023 |
UFC | 2 | 1:18 |
| L | Jennifer Maia | Decision (unanimous) | UFC 286
March 18, 2023 |
UFC | 3 | 5:00 |
| W | Roxanne Modafferi | Decision (split) | UFC 271
February 12, 2022 |
UFC | 3 | 5:00 |
| W | Antonina Shevchenko | TKO (punches) | UFC Fight Night: Santos vs. Walker
October 2, 2021 |
UFC | 2 | 4:47 |
| W | Lara Procópio | Technical Submission (rear-naked choke) | UFC on ESPN: The Korean Zombie vs. Ige
June 19, 2021 |
UFC | 3 | 2:54 |
| W | Shana Dobson | TKO (punches) | UFC Fight Night: Blaydes vs. Lewis
February 20, 2021 |
UFC | 2 | 3:41 |
| W | Christina Stelliou | KO (punches) | UAE Warriors 13
September 25, 2020 |
UAE Warriors | 2 | 2:12 |
| W | Caitlin McEwen | Decision (unanimous) | Eternal MMA 51
February 29, 2020 |
Eternal MMA | 3 | 5:00 |
| W | Miki Motono | Decision (unanimous) | Eternal MMA 48
October 4, 2019 |
Eternal MMA | 5 | 5:00 |
| W | Jada Ketley | Submission (rear-naked choke) | Eternal MMA 46
July 27, 2019 |
Eternal MMA | 1 | 2:32 |
| W | Amira Hafizović | Decision (unanimous) | Eternal MMA 43
April 5, 2019 |
Eternal MMA | 5 | 5:00 |
Career history from the fighter's Wikipedia record table (Casey O'Neill) — results only, no strike stats; UFC bouts are marked and carry full stats in the fight history above.