Avoiding the upset bug that has swept through the draw this week, Pliskova broke three times en route to a 6-2, 6-4 victory.
Pliskova came storming out of the blocks, breaking to love when Svitolina hooked a backhand wide. At 4-2, she displayed her fighting qualities to recover from 0-40 on her own serve thanks to a series of blistering groundstrokes. Svitolina's disappointment was compounded the following game when she double-faulted to surrender the set.
? WTA (@WTA) 6 January 2017
With Pliskova's effortless power leaving precious few openings, Svitolina looked in danger of being overwhelmed at the start of the second set. She stuck to her task valiantly, though, staying in touch before surrendering the decisive break in the seventh game.
"I wouldn't say it was the best today, but it was enough to win and close it today in two sets," Pliskova said. "That's why I wanted to close it and not play third set. And because it's pretty late and tomorrow I have a next match. Happy that I closed the second set.
"I think my serve was really good today. I had a few aces and a lot of free points from the serve and a lot of points which I closed on the net."
Pliskova could move up to No.5 if she wins @BrisbaneTennis. Lost her only meeting vs. Cornet, back in 2013 in Guangzhou.
? WTA Insider (@WTA_insider) January 6, 2017
In the opening four rounds, Pliskova has faced a succession of counterpunchers, and she will play another in the final, in the shape of a resurgent Alizé Cornet.
"I think it's gonna be more same what I play, because I didn't play any aggressive player here," she added. "Just more of those type of players which are defending, so Vinci, Putintseva, and now Svitolina, and Cornet is going to be the same, which is, I think, better for me that I don't have to change anything and still to have plan about myself and not thinking too much about her."