Andy Murray then reached the semi-finals of the boys' French Open, where he lost in straight sets to Marin Čilić. Mark Petchey agreed to coach Murray for four weeks until the end of Wimbledon, but it metamorphosed into a full-time position. Given a wild card to Queen's, Murray progressed past Santiago Ventura in straight sets for his first ATP match win. Following a second-round win against Taylor Dent, he played former Australian Open champion Thomas Johansson in the third round, losing in three sets after cramping and twisting his ankle. Following his performance at Queen's, Murray received a wild card for Wimbledon.
Andy Murray Ranked No. 312, Murray became the first Scot in the Open Era to reach the third round of the men's singles tournament at Wimbledon. In the third round, Murray lost to 2002 Wimbledon finalist David Nalbandian due to cramping and fatigue, having led two sets to love. Following Wimbledon, Murray won Challenger events on the hard courts of Aptos and Binghamton, New York. He then experienced his first Masters event at Cincinnati, where he beat Taylor Dent, before losing in three sets to then-No. 4, Marat Safin. With a wild card entry, Murray played Andrei Pavel in the opening round