#4. He reached the quarter-finals of his first two ATP events
Thiem turned professional in 2011 but spent his first few professional years mainly on the ITF and the ATP Challenger Circuits. His first ever ATP tournament was the 2013 Bet-at-home cup at Kitzbühel in his native Austria, where he was given a wildcard.The young talent began his tournament by beating Andrey Kuznetsov in the first round which was followed by defeating compatriot and 2010 French Open semi-finalist Jurgen Melzer in the second round to reach the quarter-finals where he was beaten by eventual semi-finalist Albert Montanes in straight sets.
Following this, Thiem received another wildcard for the 2013 Erste Bank Open in Vienna where he defeated Daniel Gimeno-Traver in a tight three-setter before trouncing Vasek Pospisil 6-1, 6-1 tp reach his second ATP quarter-final where he was beaten by top seed Jo-Wilfried Tsonga in three sets.