Tennis Tracker: Zheng in early action after Kasatkina and Siniakova seal wins

11:12 CET - Ninth seed Katie Boulter (28) has produced a commanding display to ease past home favourite Kyoka Okamura (29) in Tokyo. The Brit came out on top 6-1, 6-2 in just 70 minutes.

Elsewhere in Asia, Bernarda Pera (29) is through to the quarter-finals at the WTA event in Guangzhou, after sweeping aside Shuai Zhang (35) 6-2, 6-2.

09:42 CET - Fresh from last week's title in Ningbo, Daria Kasatkina (27) has made a winning start in Tokyo, recovering from a shaky start to battle past McCartney Kessler (25) 3-6, 6-3, 6-1.

Meanwhile, in Guangzhou, top seed Katerina Siniakova (28) has eased through to the quarter-finals after a routine 6-1, 6-4 triumph over Alycia Parks (23).

07:30 CET - Good morning and welcome back to the Tennis Tracker this Thursday morning!

The WTA Tour is still in Asia, which means there has already been a result in the very early hours in Tokyo, with Sofia Kenin (25) recovering from a set down to outlast Clara Tauson (21) 6-7(8), 6-4, 7-6(6) in an epic contest.

Currently on court is last week's Ningbo champion Daria Kasatkina (27), who is taking on McCartney Kessler (25). No. 1 seed Qinwen Zheng (22) will take to the court a little later on as she looks to continue her fine 2024 ahead of a debut appearance at the WTA Finals in a few weeks time.

Over in Guangzhou at the moment, another No. 1 seed Katerina Siniakova (28) is playing, as she looks to move into the quarter-finals.

Later on in the day, Vienna hosts Jack Draper (22), Grigor Dimitrov (33) and Alex De Minaur (25), while Stefanos Tsitsipas (26), Holger Rune (21) and two-time defending champion Felix Auger-Aliassime (24) will aim to secure a place in the last eight in Basel.