"For this to be my third tournament back and playing like this, I mean I really couldn't ask for anything more", she said. Osaka had to retire from the match after winning a second-set tiebreaker with an abdominal injury. "Overall, I think the match was much longer than just the hours on the court".
"I think I was moving very well and retrieving and just trying to stay aggressive when I could", Wozniacki said.
Two other quarterfinals were postponed until Saturday. Wozniacki hopes to win her 26th career title and first since the 2016 Hong Kong Tennis Open.
"The same thing today, I just really went out and played my game". "Even my serves, even some of the groundstrokes. I just didn't feel the ball, and I couldn't play".
Interestingly, Svitolina is 4-0 in WTA finals this season - the most championships on the tour.
She matched her powerful groundstrokes and started going for more winners to take the momentum.
"It has been a really great year", Wozniacki said after improving to 46-15 on the season. She smashed her racket into the court when another miscue gave Wozniacki a 6-5 edge.
Wozniacki can get some free points off of her serve too, something that is lacking in Svitolina's game and could hurt her chances in the final. So I tried just to have a better feeling in the end of the match but. I was used to the lefty serve so that helped me a bit.
Safarova and Strycova were scheduled to play again in the late evening match against eighth-seeded Anna-Lena Groenefeld of Germany and Kveta Peschke of the Czech Republic. During the battle of 1 h 23 min, she managed four aces and made one double fault, in addition to putting 66 % of his first service game. Wozniacki won 6-2 6-3.
"Of course I'm a little bit exhausted", Svitolina said in a post-match television interview.
"That's really the way I think". However, Caroline then fought her way from 2-4 down in the third to win 6-4.
Wozniacki has reached five finals this season and now holds the No. 6 position.
Kisner takes narrow lead into final day of PGA Championship
It wouldn't be surprising if McIlroy opted for more rest than play down the stretch to ensure he's ready to go for next season. If there is one certainty when it comes to McIlroy, it's that he will drill at least a few powerful and picturesque drives.
CIA's Pompeo says no 'imminent' threat of nuclear war
Both "agreed North Korea must stop its provocative and escalatory behavior", the White House said in a statement. He also will discuss military options in the event the "diplomatic and economic pressurisation campaign" fails.