World Record Progression of 400 Metres

Mark Wind Competitor DOB Country Venue Date
50.36 * Sydney MCLAUGHLIN 07 AUG 1999 USA USA College Station, TX (USA) 10 MAR 2018
50.82 Sanya RICHARDS-ROSS 26 FEB 1985 USA USA Fayetteville, AR (USA) 13 MAR 2004

Legend

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