Ray Stewart JAMAICA
Fastest time: (1991)
Doping record : In 2008, when Stewart was coaching several top athletes, he was implicated in a drugs scandal and charged by USA Track and Field for the alleged trafficking and administration of a prohibited substance. Stewart said the drugs were for his own use, but he was banned from the sport for life.
Robson da Silva BRAZIL
Fastest time: (1988)
Doping record : Never linked to drugs.