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
Bolt d'Oro Kentucky Derby. As a sire, Medaglia d'Oro is best known as the sire of Hall of Fame inductee Rachel Alexandra and multiple Eclipse Award winner Songbird. Bolt d'Oro was the second foal out of Globe Trot, a daughter of A.P. Indy. Her first foal, Sonic Mule, was also a stakes winner. Bolt d'Oro was sold at the 2016 Fasig-Tipton yearling sale for $630,000 to Mick Ruis, who is also the colt's trainer. Ruis sent the colt to Ike Green at his Montana ranch for breaking and early training. The colt's name is a tribute to sprinter Usain Bolt, who was