Usain Bolt profile
We look at the life and amazing career of Usain Bolt after he retained his 100 and 200m Olympic titles
Last Updated: August 9, 2012 11:17pm
1986: Born August 21 in Trelawny, Jamaica.
2002: At the age of 15 Bolt wins gold in the 200m and silver in both the 4x100m and 4x400m relays at the 2002 World Junior Championships in Kingston.
2003: Wins gold in the 200m at World Youth Championships in Sherbrooke.
2004: Becomes first junior to break the 20-second mark in the 200m, clocking 19.93 seconds.
2005: Claims gold medal in the 200m at the Central American and Caribbean Championships with a time of 20.03secs.
2007: Wins 200m silver at World Championships in Osaka, and also wins silver as a member of the 4x100m relay.
2008: May 3 - Posts the second-fastest 100m time in history at the Jamaica Invitational, clocking 9.76secs.
May 31 - Breaks the world record in the 100m at the Reebok Grand Prix, posting a time of 9.72secs in only his fifth race over the distance.
July 13 - Beats his personal best in the 200m, finishing in 19.67 seconds in Athens to register the fastest time over the distance in 2008 and the fifth-fastest 200m time ever.
Bolt retains his 200m title
August 16 - Wins 100m gold at the Beijing Olympics, lowering his previous world record to 9.69secs.
August 20 - Completes Olympic sprint double, winning the 200m in a new world record time of 19.30secs.
August 22 - Runs third leg as Jamaica score Olympic 4x100m relay victory in world record time of 37.10secs.
November 23 - Voted IAAF World Male Athlete of the Year.
2009: April 29 - Escapes serious injury when his BMW M3 car skids off road outside of Kingston and overturns. Requires minor foot surgery.
May 17 - Wins Manchester Great City Games 150m in world best time of 14.35secs. Covered first 100m in 9.91sec and last 100m with flying start in 8.70secs.
June 10 - Wins 2009 Laureus World Sportsman of the Year.
August 16 - Wins gold medal in 100m at World Championships in Berlin, with new world record time of 9.58 seconds.
August 20 - Claims second gold medal at World Championships in Berlin, with new world record time of 19.19 seconds over 200 metres.
2010: August 6 - Suffers only the second loss of his career in a 100m final, losing to Tyson Gay in Stockholm
2011: August 28 - Disqualified for a false start in the 100m final at the World Championships in Daegu. Training partner Yohan Blake goes on to take gold.
September 3 - Retains his world 200m title and later goes on to help Jamaica win the 4x100m relay in a new world record time of 37.04.
2012: June - Loses to Blake over both 100 and 200m at the Jamaican Olympic trials, but seals his place on the team for London.
July 26 - Admits he had been suffering from a stiff back which was causing a hamstring problem, but insists he is ready to defend his titles.
August 5 - Retains Olympic 100m title in 9.63s, the second quickest time in history.
August 9 - Retains Olympic 200m title in 19.32s and completes the 'double double', repeating his sprint double triumph in Beijing.