Today sees the remaining two quarter-finals take place in Beijing, with Jessica Pegula, Emma Navarro, Linda Noskova and Sonay Kartal all battling for a spot in the last four. Meanwhile, over in Shanghai, the second round of the ATP Masters 1000 event gets underway.
17:28 CET - Taylor Fritz has survived a huge scare in Shanghai, coming from behind to edge past Fabian Marozsan 2-6, 7-6(4), 7-6(1), while Zizou Bergs is also through after his opponent Casper Ruud was forced to retire with the Norwegian trailing 6-3, 5-7, 1-4.
That's it for today's action in China! We'll be back with a new Tennis Tracker in the morning, covering the Beijing semi-finals and plenty of intriguing matches in Shanghai.
15:24 CET - Novak Djokovic has started strongly in Shanghai, beating Marin Cilic 7-6, 6-4 in just under two hours - he now boasts a 20-2 H2H winning record over the Croatian.
Tomas Machac, Tallon Griekspoor and Giovanni Mpethsi Perricard have also advanced, but 14th seed Alexander Bublik and 22nd seed Flavio Cobolli have both lost to unseeded players in surprise results.
14:21 CET - Fifth seed Jessica Pegula has sealed her spot in the Beijing semi-finals after recovering from a set down to outlast compatriot Emma Navarro 6-7(2), 6-2, 6-1 in an impressive display.
She'll face Czechia's Linda Noskova tomorrow for a place in Sunday's showpiece.
12:04 CET - Fresh from a run to the Beijing final earlier in the week, Learner Tien has made a winning start in Shanghai, with the American teenager coming from a set down to defeat Miomir Kecmanovic 4-6, 6-3, 6-4.
10:45 CET - Talented Czech and 26th seed Linda Noskova is through to the semi-finals in Beijing after a convincing 6-3, 6-4 triumph over the tournament's surprise package, Sonay Kartal.
Meanwhile, in Shanghai, 10th seed Holger Rune, Ugo Humbert and Yannick Hanfmann have all progressed to the third round.
09:19 CET - Experienced Belgian David Goffin has rolled back the years this morning, producing a superb display to stun sixth seed Ben Shelton in straight sets, 6-2, 6-4.
Gabriel Diallo is also through to the next round in Shanghai, with the Canadian proving too strong for Benjamin Bonzi, 6-4, 6-4.
07:30 CET - Hello and welcome to Friday's Tennis Tracker as we look ahead to a thrilling day of action in China!
We're just 90 minutes away from the remaining two women's quarter-finals in Beijing, as talented Czech Linda Noskova takes on surprise package Sonay Kartal at 09:00 CET, before fifth seed Jessica Pegula comes up against compatriot Emma Navarro.
Meanwhile, at the ATP Masters 1000 in Shanghai, the second-round action gets underway with several big names entering the tournament, including Novak Djokovic, Taylor Fritz and Ben Shelton.