The Danish fifth seed used a solid serve to overpower her Croatian opponent en route to a 6-3, 6-4 win in the WTA claycourt tournament.

It marked the third time Wozniacki has made the final of the Charleston event, which she won eight years ago in 2011.

“I think I served well in most of the match and I think I returned really well most of the match as well, and I just tried to stay aggressive as much as I could and tried to make her run and make her move,” Wozniacki said. “I think I did well today.”

The world number 13 had never lost to Martic in five previous meetings and an upset never looked on the cards on Saturday as she completed a win in 1hr 25min.

Wozniacki will face eighth seed Madison Keys of the United States in Sunday’s final.

Keys was a similarly convincing winner in her semi with Puerto Rico’s Monica Puig, winning 6-4, 6-0.