Professional Record
11-2-0
Current Elo Rating
1659
True Contender System
Professional Record
11-2-0
Women’s Flyweight Ranking
#10
Pound-for-Pound Ranking
#24
No bout announced
Casey O'Neill has no next fight confirmed by the UFC yet.
This section updates automatically as soon as one is announced.
Casey O'Neillvs.Gabriella Fernandes
W · KO/TKO · R1
Professional Record
11-2-0
UFC Record
6-2-0
8 UFC fights
Current Elo
1,659
Peak Elo
1,659
Biggest Elo gain
8 recorded UFC fights
UFC Start
1500
Current
1659
Peak Elo
1659
Total
+159
Mar 28, 2026
KO/TKO · R1 · 3:11
Elo
1659
Change
+52
Aug 18, 2024
Decision · R3 · 5:00
Elo
1607
Change
+48
Dec 16, 2023
Submission · R2 · 1:18
Elo
1559
Change
-64
Mar 18, 2023
Decision · R3 · 5:00
Elo
1623
Change
-35
Feb 12, 2022
Decision · R3 · 5:00
Elo
1658
Change
+14
Oct 02, 2021
KO/TKO · R2 · 4:47
Elo
1644
Change
+44
Jun 19, 2021
Submission · R3 · 2:54
Elo
1600
Change
+49
Feb 20, 2021
KO/TKO · R2 · 3:41
Elo
1550
Change
+50
| Date | Result | Opponent | Method | Elo | Change |
|---|---|---|---|---|---|
| Mar 28, 2026 | W | Gabriella Fernandes −80 effective Elo for inactivity | KO/TKO · R1 · 3:11 | 1659 | +52 |
| Aug 18, 2024 | W | Luana Santos | Decision · R3 · 5:00 | 1607 | +48 |
| Dec 16, 2023 | L | Ariane da Silva | Submission · R2 · 1:18 | 1559 | -64 |
| Mar 18, 2023 | L | Jennifer Maia −40 effective Elo for inactivity | Decision · R3 · 5:00 | 1623 | -35 |
| Feb 12, 2022 | W | Roxanne Modafferi | Decision · R3 · 5:00 | 1658 | +14 |
| Oct 02, 2021 | W | Antonina Shevchenko | KO/TKO · R2 · 4:47 | 1644 | +44 |
| Jun 19, 2021 | W | Lara Procópio | Submission · R3 · 2:54 | 1600 | +49 |
| Feb 20, 2021 | W | Shana Dobson | KO/TKO · R2 · 3:41 | 1550 | +50 |
Casey O'Neill’s position is calculated by the True Contender MMA Elo system from real results and strength of opposition. The profile updates with the rankings after new fights are processed.