Tamarine sent Shinobu Asagoe's victory plans down the pan when she defeated the Japanese number four 6-3, 7-5 on Court 17.

And now Thailand's top women's tour player is determined to commandeer the same toilet again before her clash with Polish wild card Agnieszka Radwanska -- the French Open and Wimbledon junior champion.

"I'm using the same toilet from the first day so that's my lucky toilet," Tamarine told AFP.

"The same shower room too, I stick to the same one in the locker rooms.

"It seems the toilet's worked," she revealed.

Tamarine has reached the Wimbledon fourth round six times in her career and the 29-year-old is ready to gamble on her adaptability to defeat Radwanska to get there again.

"I don't really know her. I haven't seen her play," the world number 164 said.

"She won junior Wimbledon last year so I guess she's very tough.

"It's hard when you don't know how they're playing and how they're hitting. You have to gamble. I have to find out during the match and maybe change but I'll stick to my plan first.

"I just want to go out there and play my game."