Bartunkova N / Chwalinska M — Mertens E / Shnaider D

McNally C / Tjen J — Tang Q / Xu Yifan

Sakkari M / Vekic D — Aoyama S / Liang En Shuo

Jiang Xinyu / Wang Xiyu — Bucsa C / Melichar N

Guo Hanyu / Mladenovic K — Lumsden M / Panova A

Mihalikova T / Nicholls O — Chan Hao-Ching / Kato M

Kalinina A / Yastremska D — Eala A / Sonmez Z

Stollar F / Wu Fang-Hsien — Routliffe E / Sutjiadi A

Joint M / Krawczyk D — Eikeri U / Gleason Q

Kenin S / Khromacheva I — Muhammad A / Pegula J

Errani S / Paolini J — Fernandez L / Gibson T