He is a two time European Pool Championships winner and one of the most successful players on the Euro Tour, winning four events and finishing runner-up twice.

In 2000, Chamat won his first major title by defeating Ralf Souquet in the final of the nine-ball event at the European Pool Championships.

After the preliminary round, Chamat defeated Souquet, Ramil Gallego (both 9–6), Thorsten Schober (11–8), and Marlon Manalo (11–6).

[6] He also reached this stage at the 2008 WPA World Eight-ball Championship, defeating Gabriele Cimmino, Kasper Kristoffersen (both 10–5), and Dimitri Jungo (10–6) before losing in the semi-final to Souquet 10–8.

Chamat also won the UPA World Pool Summit in 2005, defeating Corey Deuel in the finals.

[14] After failing to regain his place on the team in 2006, Chamat continued to play professionally; however, he took over as non-playing captain for Europe at the Mosconi Cup at the 2015 event.

[26][27][28] Chamat is nicknamed Napoleon for his attitude while playing pool and his small stature, standing at 5 ft 4 in (1.63 m) tall.