| date | Pair 1 | sets | Pair 2 | set 1 | set 2 | TB | dur (pts) 3 | 
| Thu 17.05.18 | Daria Gavrilova / Su-Wei Hsieh |  AUS |  TPE |  | w/o | Joanna Konta / Shuai Zhang |  GBR |  CHN | Alt | walk over | 
| Thu 17.05.18 | Ashleigh Barty / Demi Schuurs |  AUS |  NED | 8 | 2-1 | Alla Kudryavtseva / Renata Voracova |  RUS |  CZE |  | 4-6 | 6-4 | [10-2] | 1:29 (76-58) | 
| Thu 17.05.18 | Timea Babos / Kristina Mladenovic |  HUN |  FRA | 3 | 2-0 | Sara Errani / Martina Trevisan |  ITA |  ITA | WC | 6-0 | 6-3 |  | 0:58 (55-35) | 
| Thu 17.05.18 | Sorana Cirstea / Jelena Ostapenko |  ROU |  LAT | O | 2-0 | Svetlana Kuznetsova / Karolina Pliskova |  RUS |  CZE | O | 6-3 | 6-3 |  | 1:04 (57-43) | 
| Thu 17.05.18 | Raquel Atawo / Anna-Lena Groenefeld |  USA |  GER |  | w/o | Madison Keys / Venus Williams |  USA |  USA | O | walk over | 
| Thu 17.05.18 | Gabriela Dabrowski / Yifan Xu |  CAN |  CHN | 4 | 2-0 | Nadiya Kichenok / Anastasia Rodionova |  UKR |  AUS |  | 6-4 | 6-3 |  | 1:09 [62-44) | 
| Thu 17.05.18 | Vania King / Katarina Srebotnik |  USA |  SLO |  | 2-1 | Anabel Medina Garrigues / Arantxa Parra Santonja |  ESP |  ESP |  | 6-4 | 6-74 | [11-9] | 1:49 (84-72) | 
| Wed 16.05.18 | Andrea Hlavackova / Barbora Strycova |  CZE |  CZE | 2 | 2-0 | Hao-Ching Chan / Zhaoxuan Yang |  TPE |  CHN |  | 6-2 | 6-4 |  | 1:08 (61-43) | 
| date | Pair 1 | sets | Pair 2 | set 1 | set 2 | TB | dur (pts) | 
|  | Joanna Konta / Shuai Zhang |  GBR |  CHN | Alt | bye | 
| Wed 16.05.18 | Daria Gavrilova / Su-Wei Hsieh |  AUS |   |  | 2-0 | Alicja Rosolska / Abigail Spears |  POL |  USA |  | 6-4 | 6-4 |  | 1:15 (59-55) | 
| Sun 14.05.18 | Alla Kudryavtseva / Renata Voracova |  RUS |  CZE |  | 2-1 | Lara Arruabarrena / Irina Camelia Begu |  ESP |  ROU | G | 3-6 | 6-3 | [10-5] | 1:24 (63-60) | 
| Sun 14.05.18 | Ashleigh Barty / Demi Schuurs |  AUS |  NED | 8 | 2-0 | Nicole Melichar / Kveta Peschke |  USA |  CZE |  | 6-3 | 6-2 |  | 1:00 (58-35) | 
|  | Timea Babos / Kristina Mladenovic |  HUN |  FRA | 3 | bye | 
| Sun 14.05.18 | Sara Errani / Martina Trevisan |  ITA |  ITA | WC | 2-0 | Shuai Peng / Yafan Wang |  CHN |  CHN | G | 7-5 | 7-61 |  | 1:51 (78-69) | 
| Sun 14.05.18 | Sorana Cirstea / Jelena Ostapenko |  ROU |  LAT | O | 2-0 | M Rybarikova / Anastasija Sevastova |  SVK |  LAT | O | 7-64 | 6-3 |  | 1:28 (70-66) | 
| Sun 14.05.18 | Svetlana Kuznetsova / Karolina Pliskova |  RUS |  CZE | O | 2-0 | Yung-Jan Chan / Bethanie Mattek-Sands |  TPE |  USA | 5 | 7-5 | 7-63 |  | 1:43 (80-74) | 
| Wed 16.05.18 | Madison Keys / Venus Williams |  USA |  USA | O | 2-1 | Barbora Krejcikova / Katerina Siniakova |  CZE |  CZE | 6 | 2-6 | 6-1 | [10-8] | 1:12 (55-51) | 
| Sun 14.05.18 | Raquel Atawo / Anna-Lena Groenefeld |  USA |  GER |  | 2-0 | Olga Savchuk / E Svitolina |  UKR |  UKR | WC | 6-1 | 6-1 |  | 0:52 (51-33) | 
| Wed 16.05.18 | Nadiya Kichenok / Anastasia Rodionova |  UKR |  AUS |  | 2-1 | Monique Adamczak / Lyudmila Kichenok |  AUS |  UKR |  | 3-6 | 7-5 | [13-11] | 1:43 (72-72) | 
|  | Gabriela Dabrowski / Yifan Xu |  CAN |  CHN | 4 | bye | 
| Wed 16.05.18 | Anabel Medina Garrigues / Arantxa Parra Santonja |  ESP |  ESP |  | 2-0 | Andrea Klepac / Maria Martinez Sanchez |  SLO |  ESP | 7 | 7-64 | 6-4 |  | 1:32 (71-63) | 
| Sun 14.05.18 | Vania King / Katarina Srebotnik |  USA |  SLO |  | 2-0 | Deborah Chiesa / Alice Matteucci |  ITA |  ITA | WC | 7-5 | 6-0 |  | 1:07 (57-41) | 
| Sun 14.05.18 | Hao-Ching Chan / Zhaoxuan Yang |  TPE |  CHN |  | 2-0 | Shuko Aoyama / Miyu Kato |  JPN |  JPN |  | 6-4 | 6-4 |  | 1:15 (62-53) | 
|  | Andrea Hlavackova / Barbora Strycova |  CZE |  CZE | 2 | bye |