Usain Bolt push Bolt to do longer sprinting distances with the aim of making the 400 m event his primary event by 2007 or 2008. Bolt was less enthusiastic, and demanded that he feel comfortable in his sprinting. He suffered another hamstring injury in March 2006, forcing him to withdraw from the 2006 Commonwealth Games in Melbourne, and he did not return to track events until May. After his recovery, Bolt was given new training exercises to improve flexibility, and the plans to move him up to the 400 m event were put on hold. The 200 m remained Bolt's primary event
Usain Bolt by Warren Weir. Prior to the 2013 World Championships in Athletics, Bolt set world leading times in the sprints, with 9.85 for the 100 m at the London Anniversary Games and 19.73 for the 200 m in Paris. Bolt regained the title as world's fastest man by winning the World Championships 100 metres in Moscow. In wet conditions, he edged Gatlin by eight hundredths of a second with 9.77, which was the fastest run that year. Gatlin was the sole non-Jamaican in the top five, with Nesta Carter, Nickel Ashmeade and Bailey-Cole finishing next. Bolt was less challenged in the