Maisy O'Sullivan
IrelandActive- Born
- Feb 11, 1993 (33 years old)
- Events
- 800 m · 1500 m
Maisy O'Sullivan is a Ireland middle-distance runner, born on February 11, 1993. She competes primarily in the 800m, 1500m and Mile.
Her personal bests include 2:04.26 in the 800m, 4:15.85 in the 1500m, 4:40.20 in the Mile, 9:42.78 in the 3000m and 9:44.73 in the 3000m. She is currently active on the international athletics circuit, representing Ireland.
Personal best · 800 m2:04.26
2026 season best2:08.27May 23, 2026 · Mary Peters Track, Belfast
Personal best · 1500 m4:15.85
Last competitionNational AAI GamesJul 19, 2026 · 2:12.76
As of Nov 6, 2026: 800 m 2:04.26, 1500 m 4:15.85, 2026 season best 2:08.27 (May 23, 2026, Mary Peters Track, Belfast (GBR)) · Last competition: National AAI Games, Jul 19, 2026, 2:12.76 · 33 years old
Personal bests
WA points calculator →DisciplineResultAll-time2026
3000mIndoorAbbotstown 20199:42.78987 pts––
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 800m-short-track Indoor | 2:07.60 | – | Mar 4, 2026 | Track & Field Live |
| 2026 | 800m | 2:08.27 | – | May 23, 2026 | British Milers Club Record Breaker with Lagan Valley AC |
| 2026 | 800m Indoor | 2:08.27 | – | May 23, 2026 | British Milers Club Record Breaker with Lagan Valley AC |
| 2026 | 800m-short-track | 2:08.91 | – | Jan 28, 2026 | Track & Field Live |
| 2025 | 800m | 2:05.61 | – | Jun 28, 2025 | Irish Milers Club-Crusaders, Morton Stadium, Santry, Dublin |
| 2025 | 800m-short-track Indoor | 2:10.13 | – | Feb 23, 2025 | Irish Indoor Championships |
| 2025 | 1500m | 4:22.43 | – | May 10, 2025 | Belfast Irish milers meet |
| 2025 | 1500m-short-track Indoor | 4:31.28 | – | Jan 11, 2025 | AAI Games, National Indoor Arena, Abbotstown, Dublin (i) |