Main > Men, 400 m Hurdles > World Championships Records Progression
All records considered statistically valid, but some of them, were unratified for various reasons.
   - Record was ratified           *   - Record was repeated
 
50.44 Andre Phillips USA Helsinki Aug 07, 1983
50.12 Aleksandr Kharlov URS Helsinki Aug 07, 1983
49.54 Edwin Moses USA Helsinki Aug 07, 1983
48.11 Edwin Moses USA Helsinki Aug 08, 1983
47.50 Edwin Moses USA Helsinki Aug 09, 1983
47.46 Edwin Moses USA Rome Sep 01, 1987
47.18 Kevin Young USA Stuttgart Aug 19, 1993