Thomaz Cocchiarali Bellucci (born 30 December 1987) is a Brazilian professional tennis player. He achieved a career-high singles ranking of World No. 21 in July 2010.Bellucci used a string of ATP Challenger Tour victories early in 2008 to break into the top 100 rankings of the ATP World Tour as a 20-year-old. He has won 4 ATP World Tour titles (the 2009 and 2012 Swiss Open, the 2010 Movistar Open and the 2015 Geneva Open) and reached the semi-finals of the 2011 Madrid Masters.