World Record Progression of 400 Metres Hurdles

Mark	Competitor	DOB	Country	Venue	Date
53.60	Sydney MCLAUGHLIN	07 AUG 1999	USA	Fayetteville, AR (USA)	27 APR 2018
53.82	Sydney MCLAUGHLIN	07 AUG 1999	USA	Sacramento, CA (USA)	25 JUN 2017
54.15	Sydney MCLAUGHLIN	07 AUG 1999	USA	Hayward Field, Eugene, OR (USA)	10 JUL 2016
54.40	Xing WANG	30 NOV 1986	CHN	Nanjing (CHN)	21 OCT 2005
54.70	Lashinda DEMUS	10 MAR 1983	USA	National Stadium, Kingston (JAM)	19 JUL 2002
54.85	Lashinda DEMUS	10 MAR 1983	USA	Baton Rouge, LA (USA)	31 MAY 2002
55.20	Jana PITTMAN	09 NOV 1982	AUS	Pietersburg (RSA)	18 MAR 2000
55.20	Lesley MAXIE	04 JAN 1967	USA	San José (USA)	09 JUN 1984

Legend

* Pending ratification. Mx: mixed gender race. Wo: women only race. (i): set indoor.