Fighter portrait

Casey O'Neill

Women's Flyweight
Record Record: 12-2-0
Wins
12
Losses
2
Draws
0
4KO/TKO
5Dec
View full record ↓

Vitals

Height, reach, and career background.

Age
28
Height
5′6″1.68 m
Reach
69″175 cm
Weight class
Women's Flyweight
Nationality
Scotland
Team
Bangtao Muay Thai
Active
2019-present

Record

Tap expandable fights for their breakdowns.

WinRecord after fight: 12-2-0SUB
Opponent: Eduarda Moura, their record after the fight: 12-3-0armbarR1 3:20
Crypto.com UFC 331: Van vs. Pantoja 2
19 Sep 2026

O'Neill brought the fight toward her pressure-and-grappling route from the opening exchange. Moura had no chance to turn the bout into a longer striking contest once O'Neill established the decisive ground position. O'Neill secured the armbar at 3:20 of round one for the submission win.

Key moments

  • O'Neill moved the fight into the grappling phases she needed to control.
  • Moura could not create enough separation once O'Neill established the finishing position.
  • The submission was official at 3:20 of the opening round.
WinRecord after fight: 11-2-0TKO
Opponent: Gabriella FernandespunchesR1 3:11
UFC Fight Night: Adesanya vs. Pyfer
28 Mar 2026
WinRecord after fight: 10-2-0DEC
Opponent: Luana SantosunanimousR3 5:00
UFC 305: Du Plessis vs. Adesanya
17 Aug 2024
LossRecord after fight: 9-2-0SUB
Opponent: Ariane da SilvaarmbarR2 1:18
UFC 296: Edwards vs. Covington
16 Dec 2023
LossRecord after fight: 9-1-0DEC
Opponent: Jennifer MaiaunanimousR3 5:00
UFC 286: Edwards vs. Usman 3
18 Mar 2023
WinRecord after fight: 9-0-0DEC
Opponent: Roxanne ModafferisplitR3 5:00
UFC 271: Adesanya vs. Whittaker 2
12 Feb 2022
WinRecord after fight: 8-0-0TKO
Opponent: Antonina ShevchenkopunchesR2 4:47
UFC Fight Night 193: Santos vs. Walker
2 Oct 2021
WinRecord after fight: 7-0-0SUB
Opponent: Lara Procopiorear-naked chokeR3 2:54
UFC Fight Night: Korean Zombie vs. Ige
19 Jun 2021
WinRecord after fight: 6-0-0TKO
Opponent: Shana DobsonpunchesR2 3:41
UFC Fight Night: Blaydes vs. Lewis
20 Feb 2021
WinRecord after fight: 5-0-0KO
Opponent: Christina StellioupunchesR2 2:12
UAE Warriors 13
25 Sep 2020
WinRecord after fight: 4-0-0DEC
Opponent: Caitlin McEwenunanimousR3 5:00
Eternal MMA 51
29 Feb 2020
WinRecord after fight: 3-0-0DEC
Opponent: Miki MotonounanimousR5 5:00
Eternal MMA 48
4 Oct 2019
WinRecord after fight: 2-0-0SUB
Opponent: Jada Ketleyrear-naked chokeR1
Eternal MMA 46
27 Jul 2019
WinRecord after fight: 1-0-0DEC
Opponent: Amira HafizovicunanimousR5 5:00
Eternal MMA 43
5 Apr 2019

The Read

Style, strengths, and defining traits.

Casey O'Neill started training kickboxing as a young child because their dad took them with him as he went, and they always wanted to get involved. They name Joint locks as a favorite grappling technique. They name Boxing as a favorite striking technique.

Licensed Fight Videos

Verified licensed uploads linked to an exact recorded bout.

See all Casey O'Neill videos in the library

Social Posts

Independent fan-made fighter profile. Not affiliated with, endorsed by, or sponsored by the UFC or any other MMA promotion. Bio and record are drawn from public sources for editorial commentary. Image credits · Methodology · Privacy · Terms.