Su-Wei Hsieh - (1) Simona Halep 3-6, 6-4, 7-5
(11) Angelique Kerber - (18) Naomi Osaka 6-2, 6-4
(12) Jelena Ostapenko - Vitalia Diatchenko 6-0, 6-4
(14) Daria Kasatkina - (17) Ashleigh Barty 7-5, 6-3
Dominika Cibulkova - (15) Elise Mertens 6-2, 6-2
Aliaksandra Sasnovich - (26) Daria Gavrilova 6-3, 6-1
Belinda Bencic - (27) Carla Suarez Navarro 6-1, 7-6(3)
Alison Van Uytvanck - (28) Anett Kontaveit 6-2, 6-3.
(5) Juan Martin del Potro - Benoit Paire 6-4, 7-6(4), 6-3
(12) Novak Djokovic - (21) Kyle Edmund 4-6, 6-3, 6-2, 6-4
(13) Milos Raonic - Dennis Novak 7-6(5), 4-6, 7-5, 6-2
(24) Kei Nishikori - (15) Nick Kyrgios 6-1, 7-6(3), 6-4
Jiri Vesely - (19) Fabio Fognini 7-6(4), 3-6, 6-3, 6-2
Gilles Simon - Matthew Ebden 6-1, 6-7(3), 6-3, 7-6(2)
Karen Khachanov - Frances Tiafoe 4-6, 4-6, 7-6(3), 6-2, 6-1.
Jelena Ostapenko (5) - Aliaksandra Sasnovich
Alison Van Uytvanck - Daria Kasatkina (14)
Angelique Kerber (11) - Belinda Bencic
Karolina Pliskova (7) - Kiki Bertens (20)
Julia Goerges (13) - Donna Vekic
Serena Williams (25) - Evgeniya Rodina
Camila Giorgi - Ekaterina Makarova.
Gael Monfils - Kevin Anderson (8)
Mackenzie McDonald - Milos Raonic (13)
John Isner (9) - Stefanos Tsitsipas (31)
Karen Khachanov - Novak Djokovic (12)
Kei Nishikori (24) - Ernests Gulbis
Juan Martin del Potro (5) - Gilles Simon
Jiri Vesely - Rafael Nadal (2).