Pliskova, meanwhile, was more than happy to take advantage of Osaka's sloppiness, converting both her break point opportunities and reeling off the last 11 points to secure a second WTA title of the campaign.
Organisers of next month's Prudential Hong Kong Tennis Open are keeping their fingers crossed that Naomi Osaka would make her highly anticipated return to the city after she complained of exhaustion in her straight-sets defeat by former world number one Karolina Pliskova at the Pan Pacific Open yesterday.
The loss marked the second time Osaka has come up short in her home tournament, having fallen to Caroline Wozniacki in the 2016 final as an 18 year old. "I knew I had to play aggressive and make her move around the court, to play with all the energy I had in me and to be positive all the time - that was the goal".
"Today was the first match that I felt nervous. She was missing quite a lot today and it was working, so I didn't change anything". Pliskova said. "I feel like I'm improving in every match, but the opponents are always more tough".
The Czech former world number one came into the contest having spent 419 minutes on court this week, more than any other player despite a first round bye and nearly twice as long as Osaka.
Pliskova, who also enjoyed a first-round bye, has found her passage to the title-match rather less straightforward.
In Pliskova's 6-2, 4-6, 6-3 victory against Donna Vekic in the last four she becomes the fifth player of this season to register 40 main draw match wins. I was expecting a tough one.
The reigning US Open champion, Naomi Osaka refuses to put a break on her acceleration of winning titles.
"I've literally never felt more exhausted".
Osaka and Pliskova had faced off twice before, each winning once. "Naomi was maybe a little bit exhausted, you could see that, but the future is bright for her and congrats to her for an incredible few weeks". "But I believe I have a chance". "So if there is anything I can take from this it is that I am proud of myself".