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 record held by Don Quarrie by 0.11 s. Mills complied with Bolt's demand to run in the 100 m, and he was entered to run the event at the 23rd Vardinoyiannia meeting in Rethymno, Crete. In his debut tournament run, he set a personal best of 10.03 s, winning the gold medal and feeding his enthusiasm for the event. He built on this achievement at the 2007 World Championships in Osaka, Japan, winning a silver medal. Bolt recorded 19.91 s with a headwind of 0.8 m/s. The race was won by Tyson Gay in 19.76 s, a new championship record.