Cassie O'BYRNE | Profile | World Athletics

Cassie O'BYRNE

400m sh

300m

200m sh

200m

400m

Ireland

Born23 APR 2008 (18)

Cassie's code15137826

Current World Rankings

#1578 Woman's 400m, #2161 Woman's 200m

Personal bests

Result

56.17

Date

14 FEB 2026

Score

1004

Competition & venue

AIT International Arena, Athlone (IRL) (i)

Result

56.17

Date

14 FEB 2026

Score

1004

Competition & venue

AIT International Arena, Athlone (IRL) (i)

Result

39.92

Date

15 MAY 2024

Score

962

Competition & venue

Morton Stadium, Santry, Dublin (IRL)

Result

25.37

Date

15 FEB 2026

Score

960

Competition & venue

AIT International Arena, Athlone (IRL) (i)

Result

24.78 *

Date

19 MAY 2026

Score

946

* Not legal

Season’s bests (2026)

* Not legal

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