 Chamat has also been runner-up at the championships on two further occasions, being defeated in the final of the eight-ball in 2010, and the nine-ball in 2012.Chamat reached the semi-finals of a world championships for the first time in 2004 at the 2004 WPA World Nine-ball Championship.After the preliminary round, Chamat defeated Souquet, Ramil Gallego (both 9–6), Thorsten Schober (11–8), and Marlon Manalo (11–6).