Lamens overcomes Birrell to win Japan Open and first WTA Tour title
WTA roundup: Russians Daria Kasatkina and Mirra Andreeva reach semis in China
WTA roundup: Bogdan scores upset in Osaka, Muchova & Krejcikova win in Ningbo
WTA roundup: Unheralded Ito upsets Cocciaretto at Japan Open, Badosa advances in Ningbo
Naomi Osaka pulls out of home Japan Open due to back injury
