Thalia O'reilly

United KingdomUnited KingdomActive
Born
Jan 1, 2010 (16 years old)
Events
400 m

Thalia O'reilly is a United Kingdom sprinter, born on January 1, 2010. She competes primarily in the 200m, 400m and 400m-short-track.

Her personal bests include 25.89 in the 200m, 58.83 in the 400m, 58.93 in the 400m-short-track, 58.93 in the 400m-short-track and 41.21 in the 300m. She is currently active on the international athletics circuit, representing United Kingdom.

Personal best · 400 m58.83
2026 season best58.83Jun 6, 2026 · Morton Stadium, Santry, Dublin
2026 season best
Last competitionNational Juvenile ChampionshipsJun 27, 2026 · 59.33
National Juvenile Championships

As of Nov 14, 2026: 400 m 58.83, 2026 season best 58.83 (Jun 6, 2026, Morton Stadium, Santry, Dublin (IRL)) · Last competition: National Juvenile Championships, Jun 27, 2026, 59.33 · 16 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
200mDublin 2026United Kingdom 200 m all-time list25.89862 pts–
400mDublin 2026United Kingdom 400 m all-time list58.83877 pts–
400m-short-trackIndoorDublin 202658.93908 pts–
400m-short-trackDublin 202658.93908 pts–
300mGöteborg 202541.21896 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2026200m 25.89+0.3Jun 6, 2026Dublin Juvenile Championships Day 2, 3 & 4
2026400m 58.83–Jun 6, 2026Dublin Juvenile Championships Day 2, 3 & 4
2026400m-short-track 58.93–Jan 31, 2026Dublin Juvenile Indoor Championships - Day 2 & Day 3
2026400m-short-track Indoor60.31–Mar 29, 2026National Juveniles Day 1 & 2 U18
2025300m 41.21–Jun 29, 2025Världsungdomsspelen
2025400m 59.95–May 9, 2025UAE Athletics Grand Prix
FAQ

Frequently asked questions

Thalia O'reilly's 400 m personal best is 58.83, set on Jun 6, 2026 in Morton Stadium, Santry, Dublin (IRL).

Thalia O'reilly competes in the 400 m.

2026 season best: 58.83, set on Jun 6, 2026 in Morton Stadium, Santry, Dublin (IRL). Last competition: National Juvenile Championships on Jun 27, 2026, 59.33.