In addition, her quarterfinal was suspended on Friday with Muguruza a set up, so she had to win four sets over two matches on Saturday. She had to play two matches on Saturday after her Friday quarterfinal was postponed due to rain.
The trend continued in the third set as each player broke in turn before Svitolina eventually held at 3-2.
Ukraine's Svitolina triumphed 6-4 6-0 in one hour and 17 minutes, with Dane Wozniacki left to reflect upon having now lost six out of six finals in 2017.
But Svitolina, ranked one spot above her opponent at fifth in the world, then firmly took control as she reeled off eight games in a row. I think my concentration and just my playing has gone up a notch.
Roger Federer on Saturday raised his game to another level at the ATP Montreal Masters beating Robin Haase 6-3, 7-6 (7/5) to reach the final.
Garbine Muguruza managed to take the first set 6-4 over Elina Svitolina, but poor weather meant they could not finish the match.
Wozniacki has totaled six breaks at the expense of its rival, 24-year-old.
On her heels a bit more, Pliskova's unforced errors started to rise. "I didn't expect this type of day but I'm very happy that I could stay very focused". "Today was very hot, so I've been really struggling". The afternoon semifinal was briefly delayed in the second set. In seesaw games that often went to deuce after long rallies on either player's serve, it was Svitolina's ability to better rebound from the ebbs and flows of the match (as well as Wozniacki's troubles at the net) that proved pivotal. So I just had to really think of that. Wozniacki, who spent only 77 minutes on court in the round of sixteen, has generally been sharp this season, often advancing through the early stages of the tournaments that she has entered.