Second-seeded Nishikori peeled off four straight games to erase a 3-0 deficit to win the first set and ensured missed opportunities in the second set didn't haunt him as he sprinted clear in the decider.
Nishikori dominated his Russian rival throughout, despite a slight hiccup when one poor service game cost him the second set.
A break in the first set had offered Murray, a two-time victor of the hard-court tournament, some comfort but the second was far more one-sided as Medvedev raced into a 4-0 lead.
"I didn't decide yet, but I think it's more no than yes", Pliskova said last night when asked if she would play in Sydney.
"A lot of my time is spent in the hotel lying in bed trying to conserve as much energy as I can, because whenever I step out on court there's so much I leave out there", he said.
"I don't really agree it was up and down because I didn't lose one serve in the match".
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She was afraid Warren might come off as angry, but "that's not anger, that's passion". "I think that's excellent", she said. That poll found 65 percent of likely caucus-goers viewed Warren favorably, and 20 percent saw her unfavorably.
Eying his 12th title in his 26th career final, Nishikori will take on the victor of the second semifinal clash pitting Frenchman Jo-Wilfried Tsonga against Daniil Medvedev of Russian Federation.
"I always start with this tournament and Melbourne".
"I just tried to change the things around a little bit and believed I was going to get a chance".
"The main goal is to do well in the Australian Open, but I'm really happy that I've been playing really well this week", he said.
Jeremy Chardy to reach the Brisbane International final. The Frenchman hit a backhand victor down the line to take his second break and a 5-4 first half lead, before serving out to love to clinch the opener.
"Even if I lost today, I think I was very confident, and some of the matches I played some of the best [players].
So I had to start at some ATP Challenger Tour events", said Nishikori.