One of the most dominant high school athletes of his time, Klech was a stand-out in nearly all track &amp; field events. Klech won a bronze medal in a tight finish in the 400 meter hurdles at the 2005 World Youth Championships in Athletics in Marrakesh. That medal was advanced to silver when the winner, Abdulagadir Idriss, was disqualified for doping. Klech was credited with the same time as eventual winner Mohammed Daak.