He reached the final stage, a performance which enabled him to play a full season on the second-tier Challenge Tour in 2002.

Delamontagne struggled initially to establish himself at the highest level; he returned to the qualifying school after both the 2003 and 2004 seasons, but was successful in regaining his card both times.

In 2005, he enjoyed his most successful year to date, finishing 68th in the Order of Merit thanks primarily to a tie for fourth in the French Open, his home tournament.

For the fifth time in his career, it would prove a successful visit, ensuring Delamontagne another year of European Tour golf.

Suffering from the yips, notably making him let his club go on his swing, he was forced to retire at the age of 35, in 2014.