Name: Melaine WalkerDate of birth: January 1, 1983.Place of birth: KingstonEvent: 400 metres hurdlesPersonal best: 52.64 seconds.Best performances: Gold at the 2008 Beijing Olympics. First at the 2008 World Athletics final in Stuttgart. Third at the 2007 World Athletics final, also in Stuttgart. Silver at the 2002 World Junior Championships in Kingston. Bronze at the 2000 World Junior Championships in Santiago, Chile.The former St Jago High student and University of Texas graduate had a brilliant 2008 and crowned it all with gold in the 400 metres hurdles final at the Beijing Olympics in a Games record 52.64 seconds. Walker is yet to show her 2008 form in the current season but will still be one of the favourites when the 2009 IAAF World Championships begins in Berlin on August 14. Her season best is 54.58 seconds.