LONDON — Andy Murray won his first match since adding Amelie Mauresmo as his new coach, beating Frenchman Paul-Henri Mathieu 6-4, 6-4 in the second round of the Queen’s Club grass-court tournament on Wednesday.

“I was looking forward to getting back on the court,” Murray said. “I enjoy playing here. I love being back on the grass. I thought I was quite disciplined with my movement today.”

Top seed and Australian Open winner Stanislas Wawrinka also advanced into the third round when Marcos Baghdatis of Cyprus retired with a right shoulder injury as the Swiss led 3-2.

Since his loss to Roger Federer in the 2012 Wimbledon final, Murray has won 19 consecutive matches on grass and captured three titles, including the 2012 London Olympic gold at the All England Club, and Wimbledon and Queen’s last year.

Murray hired former top-ranked player and two-time major winner Mauresmo as his coach on Sunday, initially for the grass-court season. He has been without a coach since he parted ways with Ivan Lendl in March.

Hiring a female coach has generated a great deal of attention, and although he previously worked with his mother, Judy, for a long period, he admits that such a move at his level of the game was unusual.