Madrid, May 11 (IANS): Scottish tennis ace Andy Murray believes his marriage has contributed to his incredible run of form after he beat Rafael Nadal to win the Madrid Open here on Sunday.

The win took his unbeaten streak to nine matches and all the good luck seems to follow him especially after his marriage with Kim Sears in Dunblane, Scotland last month.

"Marriage works," two-time Grand Slam champion Murray wrote on the camera after his win.

Murray has now secured two consecutive titles on the red clay courts since the wedding, having never previously won on the surface, and his comprehensive 6-3, 6-2 win over Nadal was as unexpected as it was stunning.

“It (marriage) has been nice and a lot of people have spoken about the honeymoon period but we've been together a very long time and getting married was the next step," Murray was quoted as saying by Eurosport.com on Monday.

"I've always said if the personal stuff is happy and under control that helps your performance on the court, the four-time Australian Open finalist added.

"But I also feel healthy this year and I have trained well, I'm in much better shape on the clay than I have been for a number of years,” the 27-year-old concluded.