Duhamel started at the age of 16 years with the poker. During his business degree, he played the way online poker, until he finally decided to to become a professional and cancel his studies. His winnings in live poker tournaments amount to approximately $ 12.1 million, which he is ranked 10 of the most successful tournament poker player.
In heads up the Main Event of the World Series of Poker 2010 he won against John Racener. For the victory, he received a prize of about $ 8.9 million. From his winning the big fan of the Montreal Canadiens donated $ 100,000 to the Montreal Canadiens Children's Organization. In January 2011, Duhamel won the High Roller tournament as part of the EPT Deauville for € 200,000. During the year, he also reached two other placings at the World Series of Poker in 2011 and finished seventh at the WPT Marrakech As part of the PCA 2012, he was able to achieve a further four placements and win over $ 1 million. In the World Series of Poker 2012 him four more money finishes go, even in 2013 seven money finishes ( five at the WSOP, two in the WSOPE and at the WSOP APAC).