Fabio Fognini will provide Juan Martin del Potro's next test at the China Open, while Richard Gasquet upset Kevin Anderson in Tokyo.
Having lost the first set, Naomi Osaka's aggressive approach saw her fight back to defeat Zhang Shuai.
As the Race to London hots up, Alexander Zverev and Kevin Anderson had contrasting results on Thursday.
Having turned around her form this week, Caroline Wozniacki will play at the WTA Finals, while several seeds fell in Beijing.
Julia Goerges was no match for Naomi Osaka, who has reached the last eight in Beijing while dropping just 11 games.
Former world number one Caroline Wozniacki was a dominant second-round winner against Petra Martic in Beijing.
Juan Martin del Potro will return to London for a first ATP Finals appearance in five years after reaching the last eight in Beijing.
Serena Williams will face Roger Federer at the Hopman Cup to begin next year.
World number four Juan Martin del Potro beat Albert Ramos-Vinolas in straight sets at the China Open.
Aryna Sabalenka outlined her promise again with a straight-sets win over Garbine Muguruza and Jelena Ostapenko was hammered in Beijing.