- Women's Flyweight
- United Kingdom
« King »
Casey O’Neill Record, stats and next fight
12-2-0 (W-L-D)
4Wins by knockout
3Wins by submission
3First round finishes
Stats and record
14Pro fights
58%Finish rate
9UFC fights
2Title fights
2Performance bonuses
3Win streak
Wins by method
Losses by method
Profile
- Age
- 28 years
- Born
- October 7, 1997
- Birthplace
- Irvine, Scotland
- Height
- 5'6" (168 cm)
- Weight
- 126 lbs (57 kg)
- Reach
- 69" (175 cm)
- Division
- Women's Flyweight
- Fighting out of
- Las Vegas, Nevada, U.S.
- Team
- Tiger Muay Thai
- UFC debut
- February 20, 2021
Fight history
-
Win
vs Eduarda Moura Bonus
UFC 331 · Sep 19, 2026 · Los Angeles, California, United States
- Method
- Submission (armbar)
- Round
- 1
- Time
- 3:22
-
Win
UFC Fight Night: Adesanya vs. Pyfer · Mar 28, 2026 · Seattle, Washington, United States
- Method
- KO (punches)
- Round
- 1
- Time
- 3:11
-
Win
vs Luana Santos
UFC 305 · Aug 18, 2024 · Perth, Australia
- Method
- Decision (unanimous)
- Round
- 3
- Time
- 5:00
-
Loss
vs Ariane Lipski
UFC 296 · Dec 16, 2023 · Las Vegas, Nevada, United States
- Method
- Submission (armbar)
- Round
- 2
- Time
- 1:18
-
Loss
vs Jennifer Maia
UFC 286 · Mar 18, 2023 · London, England
- Method
- Decision (unanimous)
- Round
- 3
- Time
- 5:00
-
Win
vs Roxanne Modafferi
UFC 271 · Feb 12, 2022 · Houston, Texas, United States
- Method
- Decision (split)
- Round
- 3
- Time
- 5:00
-
Win
vs Antonina Shevchenko Bonus
UFC Fight Night: Santos vs. Walker · Oct 2, 2021 · Las Vegas, Nevada, United States
- Method
- TKO (punches)
- Round
- 2
- Time
- 4:47
-
Win
vs Lara Procópio
UFC on ESPN: The Korean Zombie vs. Ige · Jun 19, 2021 · Las Vegas, Nevada, United States
- Method
- Technical Submission (rear-naked choke)
- Round
- 3
- Time
- 2:54
Show 6 earlier fights
-
Win
vs Shana Dobson
UFC Fight Night: Blaydes vs. Lewis · Feb 20, 2021 · Las Vegas, Nevada, United States
- Method
- TKO (punches)
- Round
- 2
- Time
- 3:41
-
Win
vs Christina Stelliou
UAE Warriors 13 · Sep 25, 2020 · Abu Dhabi, United Arab Emirates
- Method
- KO (punches)
- Round
- 2
- Time
- 2:12
-
Win
vs Caitlin McEwen
Eternal MMA 51 · Feb 29, 2020 · Perth, Australia
- Method
- Decision (unanimous)
- Round
- 3
- Time
- 5:00
-
Win
vs Miki Motono
Eternal MMA 48 · Oct 4, 2019 · Melbourne, Australia
- Method
- Decision (unanimous)
- Round
- 5
- Time
- 5:00
-
Win
vs Jada Ketley Title
Eternal MMA 46 · Jul 27, 2019 · Melbourne, Australia
- Method
- Submission (rear-naked choke)
- Round
- 1
- Time
- 2:32
-
Win
vs Amira Hafizović Title
Eternal MMA 43 · Apr 5, 2019 · Adelaide, Australia
- Method
- Decision (unanimous)
- Round
- 5
- Time
- 5:00
Analysis
Signed to the UFC at women’s flyweight, Casey O’Neill fights under the nickname “King” and hails from Scotland.
Her professional record stands at 12 wins and 2 losses. Of those wins, 4 came by KO or TKO, 3 by submission and 5 on the scorecards, a 58% finish rate.
She made her promotional debut on February 20, 2021 at UFC Fight Night: Blaydes vs. Lewis against Shana Dobson (win). She has since gone 7-2 in 9 UFC bouts.
In her most recent fight, on September 19, 2026 at UFC 331, she beat Eduarda Moura by submission (armbar) in the first round.
Her career includes 2 title fights and 2 performance bonuses.
She stands 168 cm and has a 175 cm reach.
She trains at Tiger Muay Thai out of Las Vegas, Nevada, U.S..
Data updated on September 28, 2026. Record and measurements cross-checked against official results and Wikipedia. Text written by the MMA Official editorial team.