The world No.17 continues an impressive build-up to the French Open and it has been a milestone week for the 22-year-old.

Barty, the top-ranked Australian, won 82 percent of the first serve points in the quarter-finals victory.

“I knew I had to be ready and it was a great match, a very high level out there,” Barty told Tennis Australia.

“I had to fight very hard to get back into the second set but I felt very clean off the ground today and probably felt it was my best match this week,” she added.

Barty now faces Russia world No.31 Anastasia Pavlyuchenkova in the semifinals but the Russian lead the head-to-head record 2-1.

Fellow Australian Sam Stosur was knocked out by fifth-seeded Slovakian Dominika Cibulkova in straight sets (6-4 6-3) ending her title defence. 

Stosur now turns her focus to the French Open, where she enters the tournament as an unseeded played for the first time in a decade. 

The 34-year-old has always impressed at Roland Garros, is a four-time semifinalist and has progressed to the third round or better for the past nine years.