USAIN BOLT(OLYMPIC ATHLETE)                Usain St Leo Bolt   OJ ,  CD  (born 21 August 1986) is a retired Jamaican  sprinter . He is the first person to hold both the  100 metres  and  200 metres   world records  since  fully automatic time  became mandatory. He also holds the world record as a part of the  4 × 100 metres relay . He is the reigning Olympic champion in these three events. Because of his dominance and achievements in sprint competition, he is widely considered to be the greatest sprinter of all time.   An eight-time  Olympic gold medalist , Bolt won the 100 m, 200 m and 4 × 100 m relay at three consecutive Olympic Games, although he subsequently lost one of the gold medals (as well as the world record set therein) nine years after the fact due to teammate  Nesta Carter 's disqualification for ...