| | | | |
|  Czech Republic |  Spain | |
|
|
RANK 17 | Barbora Strycova | 0-6 6-3 1-6 | Garbine Muguruza | RANK 7 |
RANK 3 | Karolina Pliskova | 6-4 7-5 | Lara Arruabarrena | RANK 70 |
RANK 3 | Karolina Pliskova | 6-2 6-2 | Garbine Muguruza | RANK 7 |
RANK 17 | Barbora Strycova | 6-4 6-4 | Lara Arruabarrena | RANK 70 |
| Lucie Safarova / Katerina Siniakova | 3-6 6-4 [7-10] | Maria Jose Martinez Sanchez / Sara Sorribes Tormo | |
| | | | |
| | | | |
|  United States |  Germany | |
|
|
RANK 40 | Alison Riske | 7-6(10) 6-2 | Andrea Petkovic | RANK 51 |
RANK 20 | Coco Vandeweghe | 6-3 3-1 RET | Julia Goerges | RANK 57 |
RANK 20 | Coco Vandeweghe | 3-6 6-4 6-0 | Andrea Petkovic | RANK 51 |
RANK 40 | Alison Riske | NOT PLAYED | Julia Goerges | RANK 57 |
| Bethanie Mattek-Sands / Shelby Rogers | 4-1 | Laura Siegemund / Carina Witthoeft | |
| | | | |
| | | | |
|  Belarus |  Netherlands | |
|
|
RANK 128 | Aliaksandra Sasnovich | 4-6 6-3 6-2 | Michaella Krajicek | RANK 253 |
RANK 142 | Aryna Sabalenka | 6-3 6-7(6) 4-6 | Kiki Bertens | RANK 24 |
RANK 128 | Aliaksandra Sasnovich | 6-3 6-4 | Kiki Bertens | RANK 24 |
RANK 142 | Aryna Sabalenka | 7-6(5) 6-4 | Michaella Krajicek | RANK 253 |
| Olga Govortsova / Vera Lapko | 6-4 6-2 | Cindy Burger / Arantxa Rus | |
| | | | |
| | | | |
|  Switzerland |  France | |
|
|
RANK 16 | Timea Bacsinszky | 7-5 6-4 | Alize Cornet | RANK 43 |
RANK 81 | Belinda Bencic | 3-6 4-6 | Kristina Mladenovic | RANK 31 |
RANK 16 | Timea Bacsinszky | 7-6(4) 4-6 7-5 | Kristina Mladenovic | RANK 31 |
RANK 81 | Belinda Bencic | 6-3 6-4 | Pauline Parmentier | RANK 64 |
| Timea Bacsinszky / Martina Hingis | 6-4 6-4 | Amandine Hesse / Kristina Mladenovic | |
| | | | |
| | | | |
| France | Spain | |
|
|
RANK 31 | Kristina Mladenovic | 6-0 6-1 | Silvia Soler-Espinosa | RANK 124 |
RANK 64 | Pauline Parmentier | 6-4 6-2 | Sara Sorribes Tormo | RANK 110 |
RANK 31 | Kristina Mladenovic | 6-1 6-1 | Sara Sorribes Tormo | RANK 110 |
RANK 64 | Pauline Parmentier | NOT PLAYED | Silvia Soler-Espinosa | RANK 124 |
| Alize Cornet / Amandine Hesse | 6-1 3-6 [10-7] | Maria Jose Martinez Sanchez / Olga Saez Larra | |
| | | | |
| | | | |
|  Russia |  Belgium | |
|
|
RANK 15 | Elena Vesnina | 6-3 6-4 | Alison Van Uytvanck | RANK 131 |
RANK 23 | Anastasia Pavlyuchenkova | 4-6 0-6 | Elise Mertens | RANK 83 |
RANK 15 | Elena Vesnina | 4-6 6-1 2-6 | Elise Mertens | RANK 83 |
| Daria Kasatkina / Elena Vesnina | 1-6 6-7(2) | Elise Mertens / An-Sophie Mestach | |
| | | | |
| | | | |
| Germany |  Ukraine | |
|
|
RANK 57 | Julia Goerges | 4-6 6-1 6-4 | Elina Svitolina | RANK 13 |
RANK 2 | Angelique Kerber | 6-1 6-4 | Lesia Tsurenko | RANK 54 |
RANK 2 | Angelique Kerber | 4-6 2-6 | Elina Svitolina | RANK 13 |
RANK 57 | Julia Goerges | 6-4 6-4 | Lesia Tsurenko | RANK 54 |
| Laura Siegemund / Carina Witthoeft | 4-6 6-4 [6-10] | Nadiia Kichenok / Olga Savchuk | |
| | | | |
| | | | |
|  Slovakia | Netherlands | |
|
|
RANK 101 | Jana Cepelova | 6-3 6-2 | Richel Hogenkamp | RANK 140 |
RANK 119 | Rebecca Sramkova | 1-6 3-6 | Kiki Bertens | RANK 24 |
RANK 101 | Jana Cepelova | 3-6 3-6 | Kiki Bertens | RANK 24 |
RANK 76 | Kristina Kucova | 5-7 4-6 | Richel Hogenkamp | RANK 140 |
| Daniela Hantuchova / Rebecca Sramkova | 2-1 | Cindy Burger / Arantxa Rus | |
| | | | |