 Usain St. Leo Bolt , OJ , CD ( / ˈjuːseɪn / ; born 21 August 1986 ) , is a Jamaican sprinter . Regarded as the fastest person ever timed , he is the first man to hold both the 100 metres and 200 metres world records since fully automatic time measurements became mandatory in 1977 . Along with his teammates , he also set the world record in the 4 × 100 metres relay . He is the reigning Olympic champion in these three events , and the first man at the modern Olympic Games to win six gold medals in sprinting , and an eleven @-@ time World champion . He was the first in the modern Olympics era to achieve the " double double " of winning 100 m and 200 m titles at consecutive games ( 2008 and 2012 ) , and topped this through the first " double triple " ( including 4 × 100 m relays ) . 
