The champion of the Internationaux de France, and the United States has won five titles this season and is on track to finish the year atop the world rankings. Tomorrow will be a tough one against Isner; he's playing unbelievably well. "I played a great first set, in my opinion".
"Happy about the match today", said Nadal.
It was the third time in four meetings this season that Kyrgios has come out on top.
"It's very emotional, I think it's the first time I cried on court", Halep said after the match.
Bulgarian Dimitrov's eye-catching shots were not enough to overcome the 31-year-old, however, and Nadal broke serve three times in the deciding set.
However, the oldest of the lot, Roger Federer, is set to compete in Shanghai next week and Nadal refused to add his powerful voice to those demanding fewer tournaments.
Kyrgios will face World No.4 Germany's Alexander Zverev who trounced Andrey Rublev of Russian Federation 6-2, 6-3.
He now lines up against sixth seed John Isner, a 6-0, 6-3 victor over Argentine Leonardo Mayer.
'It was not important, but I am still feeling it a little bit'.
"I think I played pretty OK tennis".
The world number one was a 6-3 4-6 6-1 victor as he booked his place in a 110th career final.
Elsewhere, Adrian Mannarino reeled off seven games in a row to oust top seed and previous favourite Marin Cilic in the Japan Open semi-final.
Krygios was leading Belgium's Steve Darcis 6-0, 3-0 when his opponent retired injured.
On the other hand, Dimitrov will take confidence from his win (6-2, 6-4) over Nadal at last year's quarter-final in Beijing. The 12th-seeded Kvitova will next face either Svitolina or Caroline Garcia in the semifinals.