Casey O'Neill
Current ELO: 1050
Peak ELO: 1078
Rank: #416
Peak Rank: #493
Record: 5-2
Weight Classes: Women's Flyweight
Updated: 2/12/2026
| Event | Fighter 1 | Fighter 1 ELO | Fighter 2 | Fighter 2 ELO | Weight Class | Result | Method | Stats |
|---|---|---|---|---|---|---|---|---|
| UFC 305: Du Plessis vs. Adesanya | Casey O'Neill | 1029 →1050(+21) | Luana Santos | 1060 →1038(-22) | Women's Flyweight | Win | U-DEC | View |
| UFC 296: Edwards vs. Covington | Ariane da Silva | 1012 →1037(+25) | Casey O'Neill | 1054 →1029(-25) | Women's Flyweight | Loss | SUB | View |
| UFC 286: Edwards vs. Usman 3 | Jennifer Maia | 1022 →1045(+23) | Casey O'Neill | 1078 →1054(-24) | Women's Flyweight | Loss | U-DEC | View |
| UFC 271: Adesanya vs. Whittaker 2 | Casey O'Neill | 1063 →1078(+15) | Roxanne Modafferi | 964 →950(-14) | Women's Flyweight | Win | S-DEC | View |
| UFC Fight Night: Santos vs. Walker | Casey O'Neill | 1043 →1063(+20) | Antonina Shevchenko | 1000 →979(-21) | Women's Flyweight | Win | KO | View |
| UFC Fight Night: Jung vs. Ige | Casey O'Neill | 1021 →1043(+22) | Lara Procopio | 1001 →980(-21) | Women's Flyweight | Win | SUB | View |
| UFC Fight Night: Blaydes vs. Lewis | Casey O'Neill | 1000 →1021(+21) | Shana Dobson | 982 →960(-22) | Women's Flyweight | Win | KO | View |