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 his world record runs at the Beijing Olympics. However, he, together with other members of Jamaican 4×100 m relay team, fell short of their own world record of 37.10 s set at 2008 Summer Olympics by timing 37.31 s, which is, however, a championship record and the second fastest time in history at that date. On the last day of the Berlin Championships, the Governing Mayor of Berlin, Klaus Wowereit, presented Bolt with a 12-foot high section of the Berlin Wall in a small ceremony, saying Bolt had shown that "one can tear down walls that had been considered as