JO
Jennifer O'Leary
IRLWomenBirth dateMar 28, 2007
Height-
Weight-
Jennifer O'Leary is a Ireland sprinter, born on March 28, 2007. She competes primarily in the 400m, 800m and 1500m.
Her personal bests include 59.04 in the 400m, 2:09.43 in the 800m, 4:22.87 in the 1500m, 4:51.82 in the Mile and 4:35.90 in the 1500m-short-track. She is currently active on the international athletics circuit, representing Ireland.
Key facts
1500 m
4:22.87
800 m
2:09.43
Age
19 years old
As of Oct 1, 2026: 1500 m 4:22.87, 800 m 2:09.43, 2026 season best 4:54.73 (Aug 9, 2026, Morton Stadium, Santry, Dublin (IRL)) · Last competition: National League Final, Aug 9, 2026, 4:54.73 · 19 years old
Performance Charts
Season bests
| Season | Discipline | Result | Wind | Date | Trend | Competitions |
|---|---|---|---|---|---|---|
| 2026 | 400m-short-tracki | 59.55 | - | Feb 2, 2026 | ↑ | Munster Indoor Championships |
| 2026 | 400mi | 59.55 | - | Feb 2, 2026 | ↓ | Munster Indoor Championships |
| 2026 | 1500m-short-tracki | 4:29.47 | - | Mar 14, 2026 | ↑ | Irish U20 Indoor Championships |
| 2026 | 1500m-short-track | 4:35.90 | - | Jan 25, 2026 | ↑ | British Milers Club Indoor Cardiff |
| 2026 | 1500m | 4:54.73 | - | Aug 9, 2026 | ↓ | National League Final |
| 2026 | 1500mi | 4:54.73 | - | Aug 9, 2026 | ↓ | National League Final |
| 2025 | 800m | 2:12.20 | - | Jul 5, 2025 | ↑ | Irish U20 Outdoor Championships |
| 2025 | 1500m | 4:22.87 | - | Jun 28, 2025 | ↓ | Irish Milers Club-Crusaders, Morton Stadium, Santry, Dublin |
| 2025 | 1500m-short-track | 4:48.53 | - | Mar 30, 2025 | ↑ | National Juveniles Day 2 |
| 2025 | 1500m-short-tracki | 4:48.53 | - | Mar 30, 2025 | ↑ | National Juveniles Day 2 |
| 2025 | Mile | 4:51.82 | - | Jul 11, 2025 | ↑ | Morton Games |
| 2024 | 400m-short-tracki | 59.72 | - | Feb 5, 2024 | ↑ | Munster Indoor Championships, Nenagh Olympic Stadium, Nenagh (i) |
| 2024 | 400mi | 59.72 | - | Feb 5, 2024 | ↓ | Munster Indoor Championships, Nenagh Olympic Stadium, Nenagh (i) |
| 2024 | 800m | 2:09.43 | - | May 4, 2024 | ↑ | Irish Milers Club-Crusaders, Morton Stadium, Santry, Dublin |
| 2024 | 800m-short-tracki | 2:13.02 | - | Jan 27, 2024 | ↑ | AAI Indoor Games, National Indoor Arena, Abbotstown, Dublin (i) |
| 2024 | 1500m | 4:24.30 | - | Jun 15, 2024 | ↓ | British Milers Club Record Breaker, Mary Peters Track, Belfast |
| 2024 | 1500m-short-tracki | 4:45.49 | - | Apr 6, 2024 | ↑ | National Juvenile Championships Day 2 |
| 2023 | 400m | 59.04 | - | Jun 17, 2023 | ↓ | Munster U14 - U19 Juvenile Championships |
| 2023 | 800m | 2:11.32 | - | Jun 10, 2023 | ↑ | UCD Track & Field Meet, UCD Campus Track, Dublin |
| 2023 | 800m-short-tracki | 2:17.75 | - | Feb 11, 2023 | ↑ | National Indoor League Final, National Indoor Arena, Abbotstown, Dublin (i) |
| 2023 | 1500m | 4:34.49 | - | Jul 15, 2023 | ↓ | SIAB Schools International T&F Competition, Grangemouth Sports Stadium, Grangemouth |
| 2023 | 1500m-short-tracki | 4:45.07 | - | Jan 22, 2023 | ↑ | National Indoor League R2 |
| 2023 | Milei | 5:10.87 | - | Feb 4, 2023 | ↑ | New Balance Indoor Grand Prix, The Track at New Balance, Boston, MA (i) - World Athletics Indoor Tour |
| 2023 | mile-short-tracki | 5:10.87 | - | Feb 4, 2023 | - | New Balance Indoor Grand Prix, The Track at New Balance, Boston, MA (i) - World Athletics Indoor Tour |
| 2022 | 800m | 2:14.41 | - | May 25, 2022 | ↑ | Tallaght Athletic Club Stadium, Dublin (IRL) |
| 2022 | 800m-short-track | 2:18.50 | - | Dec 1, 2022 | ↑ | - |
| 2022 | 800m-short-tracki | 2:18.50 | - | Dec 1, 2022 | ↑ | AIT International Arena, Athlone (IRL) (i) |
| 2022 | 1500m | 4:30.17 | - | Jul 16, 2022 | ↓ | Mary Peters Track, Belfast (GBR) |
2026
8 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
1500m | 4:54.73 | - | Aug 9 | National League Final |
1500m-short-tracki | 4:29.47 | - | Mar 14 | Irish U20 Indoor Championships |
1500m-short-tracki | 4:40.94 | - | Mar 1 | Irish Senior Indoor Championships |
1500m-short-tracki | 4:40.94 | - | Feb 28 | Irish Senior Indoor Championships |
1500m-short-tracki | 4:35.77 | - | Feb 28 | Irish Senior Indoor Championships |
400m-short-tracki | 59.55 | - | Feb 2 | Munster Indoor Championships |
1500m-short-tracki | 4:48.46 | - | Feb 2 | Munster Indoor Championships |
1500m-short-track | 4:35.90 | - | Jan 25 | British Milers Club Indoor Cardiff |
2025
16 performances2024
17 performances2023
9 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
1500m | 4:44.18 | - | Aug 13 | National League Final, Tullamore Harriers AC Stadium, Tullamore - Premier Events |
800m | 2:17.27 | - | Aug 13 | National League Final, Tullamore Harriers AC Stadium, Tullamore - Premier Events |
1500m | 4:37.62 | - | Jul 23 | Irish U18 Outdoor Championships Day 2&3, Tullamore Harriers AC Stadium, Tullamore - U17 Events |
1500m | 4:34.49 | - | Jul 15 | SIAB Schools International T&F Competition, Grangemouth Sports Stadium, Grangemouth |
800m | 2:15.59 | - | Jul 9 | Irish U18 Outdoor Championships Day 1 |
800m | 2:17.63 | - | Jul 9 | Irish U18 Outdoor Championships Day 1 |
1500m | 4:40.12 | - | Jun 24 | Tailteann Games, South Sports Campus, Carlow |
400m | 59.04 | - | Jun 17 | Munster U14 - U19 Juvenile Championships |
800m | 2:11.32 | - | Jun 10 | UCD Track & Field Meet, UCD Campus Track, Dublin |
Showing 1 - 50 of 68
Honours
No medals
FAQ
Frequently asked questions
What is Jennifer O'Leary's 1500 m personal best?
Jennifer O'Leary's 1500 m personal best is 4:22.87, set on Jun 28, 2025 in Morton Stadium, Santry, Dublin (IRL).
Which events does Jennifer O'Leary compete in?
Jennifer O'Leary competes in the 1500 m and 800 m.
How did Jennifer O'Leary perform in 2026?
2026 season best: 4:54.73, set on Aug 9, 2026 in Morton Stadium, Santry, Dublin (IRL). Last competition: National League Final on Aug 9, 2026, 4:54.73.