The 22-year-old came back from a set down to clinch the win 4-6 6-3 6-2 over the world No.8. 

Coming into the match, Barty held a 3-0 record over Bertens with all three coming from a set down.

Their most recent encounter came during the Sydney International semi-final were a close match saw Barty reach the final after a 6-7(4) 6-4 7-5 victory.

"Whenever I play Kiki, there's really not much in the match at all," Barty said.

"For a span of six or seven games there she maybe gave me one or two errors - she really went into lockdown mode.

"I did well to squeeze out of my service game at 2-2 in the second, had a little wriggle there and went into lockdown mode myself."

Barty will face Petra Kvitova, who had a straight sets win over Caroline Garcia, on March 27 10:30am AEDT with the match equally important for each player. 

If Barty is able to topple the world No.2, she has the possibility of breaking into the top 10 for the first time however, the Czech star has the chance to regain No.1 status if she lifts the Miami title.

The No.1 ranked Australian has yet to beat Kvitova in four meetings with two of their recent encounters happening on Australian soil in January this year.

Barty is also through to the quarter-finals of the women's doubles with Victoria Azarenka while Australian Open women's double winners Sam Stosur and Shuai Zhang join them.