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Zelenka is coached by his father ... Zelenka's family emigrated from the Czech Republic to Italy when he was six years old ... He received Italian citizenship in January 2006 ... He is a five-time Italian national champion ... Zelenka's hobbies include tennis, cars, music and movies.

• 2008 Season Notes
  SP Music: "Nut Rocker" by Robert Wells
  FS Music: "Cheek to Cheek," "Let Yourself Go," "Top Hat" and "White Tie and Tails" from the Burn the Floor soundtrack

2009 - Finlandia Trophy - 16th
2008 - Finlandia Trophy - 7th
2008 - World Championships - 16th
2008 - European Championships - 15th
2008 - Italian Championships - 2nd
2007 - Cup of China - 6th
2007 - Skate America - 12th
2007 - World Championships - 17th
2007 - European Championships - 7th
2007 - Italian Championships - 1st
2006 - Skate America - 10th
2006 - Nebelhorn Trophy - 5th
2006 - Karl Shäfer Memorial - 4th
2006 - World Championships - 25th
2006 - Winter Olympic Games - 25th
2006 - European Championships - 19th
2006 - Italian Championships - 1st
2005 - MasterCard Skate Canada - 10th
2005 - Golden Spin of Zagreb - 6th
2005 - World Championships - 20th
2005 - Italian Championships - 1st
2004 - International Cup of Nice - 6th
2004 - European Championships - 16th
2004 - Italian Championships - 1st
2003 - World Championships - 25th
2003 - European Championships - 19th
2003 - Italian Championships - 1st
2002 - Italian Championships - 2nd
2001 - World Junior Championships - 8th
2001 - Italian Championships - 2nd