Who will Casey O'Neill 🇦🇺 fight next?
Not confirmed as of 1 Oct 2026: no opponent or date has been officially announced.
Most likely Miranda Maverick (11%), UFC Sydney, Afterpay Arena, 7 Feb 2027. Next: Regina Tarin (11%), Tracy Cortez (10%).
Latest status: Last fight: Beat Eduarda Moura (Submission, UFC 331, 19 Sep 2026). No fight announced.
Updated (UAE time) · Percentages are NextSmash model estimates, not facts or betting advice.
Forecast: likely opponents Model estimate
Each percentage is the estimated chance of being her next opponent. These are not chances of winning.
- 11%chance next opponentModel pick: Ranked #12 and #10, neither has a fight booked. Miranda Maverick lost last time out, against Rose Namajunas (14 Jun 2025).Likely event: UFC Sydney · Afterpay Arena · 7 Feb 2027
- 11%chance next opponentModel pick: Ranked #12 and #14, neither has a fight booked. Regina Tarin won last time out, against JJ Aldrich (12 Sep 2026). Riser.Likely event: UFC Sydney · Afterpay Arena · 7 Feb 2027
- 10%chance next opponentModel pick: Ranked #12 and #9, neither has a fight booked. Tracy Cortez lost last time out, against Wang Cong (11 Jul 2026).Likely event: UFC Sydney · Afterpay Arena · 7 Feb 2027
Field / other: 68%. This covers everyone not listed above.
- Likely event
- UFC Sydney · Afterpay Arena · 7 Feb 2027 · Event page: UFC Fight Night Sydney
- Last fight
- Win vs Eduarda Moura · Submission R1 3:22 · UFC 331 · 19 Sep 2026
- Career stage
- Riser: 3 straight wins.
- Confidence
- Low (High = officially booked · Medium = reported or a fighter's own claim · Low = model only)
- Last updated
- (UAE time)
What changed?
- UFC.com: UFC Fight Night Sydney, Afterpay Arena, Sun 7 Feb 2027 · source
Only dated items with a source are listed: news reports used for the estimate, plus changes to our logged estimates.
Fight history Pro record 12-2-0
| Result | Opponent | Method | Rd | Time | Event | Date |
|---|---|---|---|---|---|---|
| W | Eduarda Moura 🇧🇷 | Submission (armbar) · R1, 3:22 | 1 | 3:22 | UFC 331 | |
| W | Gabriella Fernandes 🇧🇷 | KO (punches) · R1, 3:11 | 1 | 3:11 | UFC Fight Night: Adesanya vs. Pyfer | |
| W | Luana Santos 🇧🇷 | Decision (unanimous) · R3, 5:00 | 3 | 5:00 | UFC 305 | |
| L | Ariane Lipski | Submission (armbar) · R2, 1:18 | 2 | 1:18 | UFC 296 | |
| L | Jennifer Maia | Decision (unanimous) · R3, 5:00 | 3 | 5:00 | UFC 286 | |
| W | Roxanne Modafferi | Decision (split) · R3, 5:00 | 3 | 5:00 | UFC 271 | |
| W | Antonina Shevchenko | TKO (punches) · R2, 4:47 | 2 | 4:47 | UFC Fight Night: Santos vs. Walker | |
| W | Lara Procópio | Technical Submission (rear-naked choke) · R3, 2:54 | 3 | 2:54 | UFC on ESPN: The Korean Zombie vs. Ige | |
| W | Shana Dobson | TKO (punches) · R2, 3:41 | 2 | 3:41 | UFC Fight Night: Blaydes vs. Lewis | |
| W | Christina Stelliou | KO (punches) · R2, 2:12 | 2 | 2:12 | UAE Warriors 13 | |
| W | Caitlin McEwen | Decision (unanimous) · R3, 5:00 | 3 | 5:00 | Eternal MMA 51 | |
| W | Miki Motono | Decision (unanimous) · R5, 5:00 | 5 | 5:00 | Eternal MMA 48 | |
| W | Jada Ketley | Submission (rear-naked choke) · R1, 2:32 | 1 | 2:32 | Eternal MMA 46 | |
| W | Amira Hafizović | Decision (unanimous) · R5, 5:00 | 5 | 5:00 | Eternal MMA 43 |
Professional MMA bouts only, newest first. Source: Wikipedia (checked 2 Oct 2026).
Casey O'Neill: frequently asked questions
When is Casey O'Neill's next fight?
No fight is officially booked as of 1 Oct 2026. Our outlook: UFC Sydney · Afterpay Arena · 7 Feb 2027.
Who did Casey O'Neill fight last?
Casey O'Neill beat Eduarda Moura at UFC 331 on 19 Sep 2026 (Submission R1 3:22).
Who is Casey O'Neill likely to fight next?
NextSmash model estimate: Miranda Maverick (11%), Regina Tarin (11%), Tracy Cortez (10%). Updated 1 Oct 2026. These are estimates, not facts or betting advice.
Is Casey O'Neill fighting at UFC Sydney?
Nothing is booked as of 1 Oct 2026. UFC Fight Night Sydney is set for Sun 7 Feb 2027 at the Afterpay Arena, and no bouts had been announced when we checked on 2 Oct 2026. Our model's picks that list Sydney as a possible event: Miranda Maverick (11%), Regina Tarin (11%), Tracy Cortez (10%).
What is Casey O'Neill's record?
12-2-0 (wins-losses-draws) in professional MMA, as listed on UFC.com (checked 1 Oct 2026).
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Other women's flyweight fighters
- Karine Silva #11 · next: Gabriella Fernandes 92%
- Eduarda Moura #13 · next: Regina Tarin 18%
- Miranda Maverick #10 · next: Tracy Cortez 15%
- Regina Tarin #14 · next: Eduarda Moura 18%
- Tracy Cortez #9 · next: Miranda Maverick 15%
More: Women's Flyweight rankings and next fights · Australia UFC fighters · UFC Fight Night Sydney fight card
Sources
- UFC.com athlete profile (record, rank, last fight) · 1 Oct 2026
- UFC.com rankings (Media + Meta), checked 1 Oct 2026 · 1 Oct 2026
- ESPN fighter profile (country, fight history) · 1 Oct 2026
- UFC.com: UFC Fight Night Sydney, Afterpay Arena, Sun 7 Feb 2027 · 29 Sep 2026
Percentages are NextSmash model estimates from the factors shown above (see methodology). They are not facts, and not betting advice. Records and ranks come from UFC.com; country from ESPN. Checked 1 Oct 2026.