In singles, he reached four ATP-tour finals, and achieved a career-high ranking of 33 in February 1995.
In doubles, he won 15 titles during his career and reached a career-high ranking of 3 in July 1999. In 1998, he won four doubles titles with
Fabrice Santoro and together they qualified for the end-of-year
ATP Finals, where they reached the semifinals. In 1999, Delaitre and Santoro lost in the semifinals of Wimbledon 7-5 in the final set to eventual champions
Mahesh Bhupati and
Leander Paes. Delaitre's biggest title was the
Monte Carlo Masters in 1999, where - unseeded - he and
Tim Henman won the tournament without dropping a set.
Delaitre was the first person to defeat future World No. 1
Roger Federer at a Grand Slam, in the first qualifying round of the
1999 Australian Open.
In singles, he reached four ATP-tour finals, and achieved a career-high ranking of 33 in February 1995.
In doubles, he won 15 titles during his career and reached a career-high ranking of 3 in July 1999. In 1998, he won four doubles titles with
Fabrice Santoro and together they qualified for the end-of-year
ATP Finals, where they reached the semifinals. In 1999, Delaitre and Santoro lost in the semifinals of Wimbledon 7-5 in the final set to eventual champions
Mahesh Bhupati and
Leander Paes. Delaitre's biggest title was the
Monte Carlo Masters in 1999, where - unseeded - he and
Tim Henman won the tournament without dropping a set.
Delaitre was the first person to defeat future World No. 1
Roger Federer at a Grand Slam, in the first qualifying round of the
1999 Australian Open.