These are the official results of the Men's 400 metres event at the 2003 IAAF World Championships in Paris, France. There were a total number of 51 participating athletes, with seven qualifying heats, three semi-finals and the final held on Tuesday 26 August 2003 at 21:50h. The winning margin was 0.02 seconds which as of May 2024 remains the narrowest winning margin in the men's 400 metres at these championships.
The gold medal was originally won by Jerome Young of the United States in 44.50, but he was later disqualified for doping, together with his teammate Calvin Harrison who finished in sixth place.
Final RANKFINALTIME44.7744.7944.804.44.835.45.176.45.48—DQ—DQ
Semi-final Held on Sunday 24 August 2003 RANKHEAT 1TIME1.44.752.44.813.44.994.45.275.45.436.45.94—DQ—44.70
RANKHEAT 2TIME1.44.602.45.033.45.294.45.295.45.566.45.657.46.028.46.52
RANKHEAT 3TIME1.44.882.44.983.44.994.45.115.45.186.45.357.45.608.45.63
Heats Held on Saturday 23 August 2003 RANKHEAT 1TIME1.45.132.45.153.45.404.45.625.45.686.46.157.49.60—DQ
RANKHEAT 2TIME1.45.622.46.073.46.094.46.145.46.226.46.43—DQ
RANKHEAT 3TIME1.45.452.45.693.45.894.46.015.46.616.46.747.46.78
RANKHEAT 4TIME1.45.302.45.353.45.484.45.555.45.876.46.127.46.22
RANKHEAT 5TIME1.45.492.45.603.45.834.45.895.46.096.46.517.48.74—DNF
RANKHEAT 6TIME1.45.422.45.863.45.984.46.485.46.53—DQ—45.28
RANKHEAT 7TIME1.45.352.45.413.45.624.45.645.45.876.46.267.48.368.50.11
See also Athletics at the 2003 Pan American Games - Men's 400 metres
References