| | | | |
| Czech Republic | Romania | |
|
|
RANK 5 | Karolina Pliskova | 6-1 6-4 | Mihaela Buzarnescu | RANK 30 |
RANK 44 | Katerina Siniakova | 4-6 0-6 | Simona Halep | RANK 2 |
RANK 5 | Karolina Pliskova | 4-6 7-5 4-6 | Simona Halep | RANK 2 |
RANK 44 | Katerina Siniakova | 6-4 6-2 | Mihaela Buzarnescu | RANK 30 |
| Barbora Krejcikova / Katerina Siniakova | 7-6(2) 4-6 4-6 | Irina-Camelia Begu / Mihaela Buzarnescu | |
| | | | |
| | | | |
| Belgium | France | |
|
|
RANK 52 | Alison Van Uytvanck | 6-7(2) 6-4 2-6 | Caroline Garcia | RANK 19 |
RANK 21 | Elise Mertens | 6-7(6) 2-6 | Alize Cornet | RANK 51 |
RANK 21 | Elise Mertens | 2-6 3-6 | Caroline Garcia | RANK 19 |
RANK 52 | Alison Van Uytvanck | NOT PLAYED | Alize Cornet | RANK 51 |
| Ysaline Bonaventure / Kirsten Flipkens | 6-3 3-6 [10-6] | Fiona Ferro / Pauline Parmentier | |
| | | | |
| | | | |
| Germany | Belarus | |
|
|
RANK 67 | Tatjana Maria | 6-7(3) 3-6 | Aliaksandra Sasnovich | RANK 33 |
RANK 71 | Andrea Petkovic | 2-6 1-6 | Aryna Sabalenka | RANK 10 |
RANK 104 | Laura Siegemund | 1-6 1-6 | Aryna Sabalenka | RANK 10 |
RANK 71 | Andrea Petkovic | NOT PLAYED | Aliaksandra Sasnovich | RANK 33 |
| Mona Barthel / Anna-Lena Gronefeld | 1-6 6-0 [9-11] | Victoria Azarenka / Lidziya Marozava | |
| | | | |
| | | | |
| United States | Australia | |
|
|
RANK 36 | Sofia Kenin | 1-6 6-7(2) | Ashleigh Barty | RANK 13 |
RANK 14 | Madison Keys | 6-2 6-2 | Kimberly Birrell | RANK 157 |
RANK 14 | Madison Keys | 4-6 1-6 | Ashleigh Barty | RANK 13 |
RANK 23 | Danielle Collins | 6-1 3-6 6-2 | Daria Saville | RANK 47 |
| Danielle Collins / Nicole Melichar | 4-6 5-7 | Ashleigh Barty / Priscilla Hon | |
| | | | |