Casey O'Neill

“King”

#12 Women's Flyweight

OctagonStats Rating 1569

7-2-0

Career record (W-L-D)

Physical stats

Height5' 6" (168 cm)

Weight125 lbs. (57 kg)

Reach69" (175 cm)

StanceOrthodox

BornOct 07, 1997

Age29

DivisionFlyweight

BirthplaceIrvine, Scotland

NationalityAustralian British

TeamTiger Muay Thai (2019–2020) Xtreme Couture MMA (2020–2024)

Striking & grappling

SLpM7.60

Str. Acc52%

SApM5.36

Str. Def57%

TD Avg1.35

TD Acc34%

TD Def-

Sub Avg0.8

Recent form

W W W L L

Last 5 fights, most recent first

Career timeline

9 fights, oldest to newest — ■ win ■ loss ■ draw/no contest. Hover for details.

Career breakdown

Based on recorded UFC bouts — early regional fights may not be included.

Wins by method

3 KO/TKO wins · 2 sub wins · 2 decision wins

Losses by method

0 KO/TKO losses · 1 sub losses · 1 decision losses

Finish rate71%

Times finished50%

StreakW3

Best streak4

Avg fight9:55

Octagon time1h 29m

Opp win%68%

ActiveFeb. 20, 2021 – Sep. 19, 2026 (6y)

Strength of schedule

Ranked opponents faced3

Ranked wins3

Best ranked winLuana Santos (#7 Women's Bantamweight)

Based on current UFC rankings — a snapshot, not the ranking at fight time.

Bonus awards

Performance of the Night2

Total bonuses2

Post-fight bonuses from UFC event records.

Career story

Casey O'Neill "King" is a 12-2-0 finisher. 71% finish rate.

Casey debuted Feb. 20, 2021 vs Shana Dobson (win). Longest win streak: 4. On a 3-fight win streak. 6 years active (Feb. 20, 2021–Sep. 19, 2026).

Best wins: Eduarda Moura (SUB Armbar R1, Sep. 19, 2026); Luana Santos (U-DEC R3, Aug. 17, 2024); Gabriella Fernandes (KO/TKO Punches R1, Mar. 28, 2026).

Casey O'Neill (born 7 October 1997) is a Scottish and Australian professional mixed martial artist. She currently competes in the women's Flyweight division of the Ultimate Fighting Championship (UFC). As of September 19, 2026, she is #11 in the Meta UFC women's flyweight rankings.

Similar fighters

Wang Cong

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Joshua Van

18-2-0

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Joanne Wood

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Namsrai Batbayar

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Heavy hands — most wins by KO

Fight history

Date	Event	Result	Method	R	Time	KD	Str	TD	Sub
Sep. 19, 2026	UFC 331: Van vs. Pantoja 2	W Eduarda Moura	SUB Armbar	1	3:22	0 0	1 3	0 0	1 1
Mar. 28, 2026	UFC Fight Night: Adesanya vs. Pyfer	W Gabriella Fernandes	KO/TKO Punches	1	3:11	1 0	25 8	0 0	0 0
Aug. 17, 2024	UFC 305: Du Plessis vs. Adesanya	W Luana Santos	U-DEC	3	5:00	0 0	83 41	0 1	1 0
Dec. 16, 2023	UFC 296: Edwards vs. Covington	L Ariane da Silva	SUB Armbar	2	1:18	0 0	31 64	0 1	0 1
Mar. 18, 2023	UFC 286: Edwards vs. Usman 3	L Jennifer Maia	U-DEC	3	5:00	0 0	137 145	0 0	0 0
Feb. 12, 2022	UFC 271: Adesanya vs. Whittaker 2	W Roxanne Modafferi	S-DEC	3	5:00	0 0	229 120	0 2	0 0
Oct. 02, 2021	UFC Fight Night: Santos vs. Walker	W Antonina Shevchenko	KO/TKO Punches	2	4:47	0 0	52 40	3 0	0 0
Jun. 19, 2021	UFC Fight Night: Jung vs. Ige	W Lara Procopio	SUB Rear Naked Choke	3	2:54	0 0	71 41	1 2	2 0
Feb. 20, 2021	UFC Fight Night: Blaydes vs. Lewis	W Shana Dobson	KO/TKO Punches	2	3:41	0 0	49 16	4 0	1 0

Fight data compiled from public statistical sources (ufcstats.com) and Wikipedia (CC BY-SA). OctagonStats is an independent database, not affiliated with UFC / TKO Group.