Casey O'Neill
- Height
- 5'6"
- Reach
- 69"
- Weight
- 125 lb
- Stance
- Orthodox
- Born
- Tue, Oct 7, 1997, age 28
- First UFC fight
- Sat, Feb 20, 2021
- Latest UFC fight
- Sat, Mar 28, 2026
01/How he wins
3 KO/TKO (punches to head from mount 2, punches to head at distance), 1 submission, 2 decisions in 6 wins
| How the fight ended | His wins | His losses |
|---|---|---|
| KO/TKO | 3 | 0 |
| Submission | 1 | 1 |
| Decision | 2 | 1 |
| All | 6 | 2 |
02/Career rates
03/By division
| Fights | Record | Min | Sig strikes | Per min | Takedowns | Control | KD | Finishes in wins | |
|---|---|---|---|---|---|---|---|---|---|
| Women's Flyweight | 8 | 6-2-0 | 85.8 | 677 of 1,297 | 7.89 | 8 of 23 | 21:30 of 85:51 | 1 | 4 in 6 |
| All | 8 | 6-2-0 | 85.8 | 677 of 1,297 | 7.89 | 8 of 23 | 21:30 of 85:51 | 1 | 4 in 6 |
04/By year
| Fights | Record | Min | Sig strikes | Per min | Takedowns | Control | KD | Finishes in wins | |
|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1-0-0 | 3.2 | 25 of 66 | 7.85 | 0 of 0 | 0:00 of 3:11 | 1 | 1 in 1 |
| 2024 | 1 | 1-0-0 | 15.0 | 83 of 193 | 5.53 | 0 of 2 | 2:21 of 15:00 | 0 | 0 in 1 |
| 2023 | 2 | 0-2-0 | 21.3 | 168 of 338 | 7.89 | 0 of 3 | 0:20 of 21:18 | 0 | 0 in 0 |
| 2022 | 1 | 1-0-0 | 15.0 | 229 of 393 | 15.27 | 0 of 2 | 0:02 of 15:00 | 0 | 0 in 1 |
| 2021 | 3 | 3-0-0 | 31.4 | 172 of 307 | 5.48 | 8 of 16 | 18:47 of 31:22 | 0 | 3 in 3 |
| All | 8 | 6-2-0 | 85.8 | 677 of 1,297 | 7.89 | 8 of 23 | 21:30 of 85:51 | 1 | 4 in 6 |
A career line lumps every year together, and a fighter’s 2014 does not describe his 2026. Each year here is the same count over that year’s fights alone, with its own minutes, so it can be read against the career line beneath it.
05/By round
| Fights reached | Min in it | Sig strikes | Per min | Takedowns | Control | KD | Sub att | Ended here | |
|---|---|---|---|---|---|---|---|---|---|
| Round 1 | 8 of 8 | 38.2 | 259 of 552 | 6.78 | 5 of 12 | 7:08 of 38:11 | 1 | 1 | 1, won 1 |
| Round 2 | 7 of 8 | 29.8 | 259 of 451 | 8.70 | 2 of 8 | 9:36 of 29:46 | 0 | 1 | 3, won 2 |
| Round 3 | 4 of 8 | 17.9 | 159 of 294 | 8.88 | 1 of 3 | 4:46 of 17:54 | 0 | 2 | 4, won 3 |
Round length is read from each fight’s round format, so a 12-minute opening round from 1995 counts its twelve minutes. A round is counted only for the fights that reached it; the first column is the denominator for the rest of the row.
06/Fight log
| Date | Opponent | Result | Sig strikes | Takedowns | Control | KD | Time | |
|---|---|---|---|---|---|---|---|---|
| Sat, Mar 28, 2026UFC Fight Night: Adesanya vs. Pyfer | Gabriella FernandesWomen's Flyweight | WKO/TKO, R1 3:11Punches to Head At Distance | 25 of 66 | 0 of 0 | 0:00 | 1 | 3:11 | Rounds |
| Sat, Aug 17, 2024UFC 305: Du Plessis vs. Adesanya | Luana SantosWomen's Flyweight | WUnanimous decision, R3 5:00Charlie Keech 27 - 30. David Lethaby 27 - 30. Evan Field 26 - 30. | 83 of 193 | 0 of 2 | 2:21 | 0 | 15:00 | Rounds |
| Sat, Dec 16, 2023UFC 296: Edwards vs. Covington | Ariane da SilvaWomen's Flyweight | LSubmission, R2 1:18Armbar On Ground | 31 of 74 | 0 of 2 | 0:20 | 0 | 6:18 | Rounds |
| Sat, Mar 18, 2023UFC 286: Edwards vs. Usman 3 | Jennifer MaiaWomen's Flyweight | LUnanimous decision, R3 5:00Vito Paolillo 27 - 30. Chris Lee 28 - 29. David Lethaby 28 - 29. | 137 of 264 | 0 of 1 | 0:00 | 0 | 15:00 | Rounds |
| Sat, Feb 12, 2022UFC 271: Adesanya vs. Whittaker 2 | Roxanne ModafferiWomen's Flyweight | WSplit decision, R3 5:00Kerry Hatley 28 - 29. Robert Alexander 29 - 28. Ivan Guzman 28 - 29. | 229 of 393 | 0 of 2 | 0:02 | 0 | 15:00 | Rounds |
| Sat, Oct 2, 2021UFC Fight Night: Santos vs. Walker | Antonina ShevchenkoWomen's Flyweight | WKO/TKO, R2 4:47Punches to Head From Mount | 52 of 110 | 3 of 8 | 5:39 | 0 | 9:47 | Rounds |
| Sat, Jun 19, 2021UFC Fight Night: Jung vs. Ige | Lara ProcopioWomen's Flyweight | WSubmission, R3 2:54Rear Naked Choke | 71 of 129 | 1 of 2 | 5:42 | 0 | 12:54 | Rounds |
| Sat, Feb 20, 2021UFC Fight Night: Blaydes vs. Lewis | Shana DobsonWomen's Flyweight | WKO/TKO, R2 3:41Punches to Head From Mount | 49 of 68 | 4 of 6 | 7:26 | 0 | 8:41 | Rounds |
UFC bouts only, counted from the fight rows; the promotion’s listed pro record above covers every promotion and is a different denominator. Volume is per minute of cage time and accuracy per attempt; how he finishes is counted in his wins, the one place a fight is the unit. Significant strikes only. Control time the source did not record is absent, never 0:00.