13:02 CET - Fourth seed Ekaterina Alexandrova is through to the semi-finals in China after a relatively routine 6-3, 6-3 win over McCartney Kessler.
Staying in Asia, Czech teenager Tereza Valentova has advanced to the last four, thanks to a shock 4-6, 6-2, 6-3 victory against sixth seed Olga Danilovic.
11:23 CET - Daniil Medvedev has continued his encouraging recent form, beating Fabian Marozsan 7-5, 6-2 to move into the last four in Almaty.
10:55 CET - Second seed Jasmine Paolini has come through a thrilling quarter-final clash in Ningbo, with the Italian recovering from a set down to defeat Belinda Bencic 5-7, 7-5, 6-3 in well over three hours.
09:52 CET - Australia's Jordan Duckworth is the first man through to the semi-finals in Almaty after a superb 6-3, 6-2 victory over third seed Flavio Cobolli.
Meanwhile, in Osaka, Sorana Cirstea has advanced to the last four courtesy of a topsy-turvy 6-2, 2-6, 6-2 win against Viktorija Golubic.
07:30 CET - Hello and welcome to Flashscore's coverage of today's tennis!
The day's action is already underway, with Leylah Fernandez progressing to the semi-finals in Japan after a 7-6(2), 6-3 win over Rebecca Sramkova, while home hero Naomi Osaka has pulled out of her last-eight clash against Jaqueline Cristian after failing to recover from a leg injury.
Things are now beginning in China too, where Jasmine Paolini is facing Belinda Bencic in the Ningbo quarter-finals, knowing a win will secure her place at the WTA Finals.
On the men's side of the game, Daniil Medvedev is taking on Fabian Marozsan in Almaty in just over two hours, while Lorenzo Musetti, Holger Rune and Casper Ruud are among others taking to the court across Europe throughout the day.
