[1] Dupasquier made his Davis Cup debut in 1980, when he lost a dead rubber singles match to Italy's Gianni Ocleppo.

In 1982 he won a singles rubber over Mohammed Dlimi of Morocco, to finish with a 2-1 Davis Cup career record.

This was because he was busy playing a Davis Cup tie during qualifying and meant that he would go straight into the main draw.

[4] Also that year he reached the quarter-finals of the Taipei Grand Prix tournament and was a losing finalist in Manila.

[4] He completed in the men's doubles draw of a Grand Slam event on one occasion, which was at the 1982 French Open, where he partnered Christophe Roger-Vasselin.