| date | Pair 1 | sets | Pair 2 | set 1 | set 2 | TB | dur (pts) |
| Tue 22.01.19 157 | Gabriela Dabrowski / Mate Pavic |  CAN |  CRO | 1 | 2-0 | Hao-Ching Chan / Jean-Julien Rojer |  TPE |  NED | | 6-4 | 6-3 | | 1:05 (59-42) |
| Mon 21.01.19 157 | Maria Jose Martines Sanchez / Neal Skupski |  ESP |  GBR | | 2-0 | Jessica Moore / Andrew Whittington |  AUS | AUS | WC | 6-4 | 6-1 | | 1:02 (57-39) |
| Tue 22.01.19 C3 | Barbora Krejcikova / Rajeev Ram |  CZE |  USA | 3 | 2-1 | Iga Swiatek / Lukasz Kubot |  POL | POL | WC | 6-3 | 4-6 | [10-5] | 1:15 (61-57) |
| Tue 22.01.19 C3 | Anna-Lena Groenfeld / Robert Farah |  GER |  COL | | 2-1 | Samantha Sosur / Leander Paes | AUS |  IND | | 4-6 | 6-4 | [10-8] | 1:30 (71-70) |
| Mon 21.01.19 MA | Astra Sharma / John-Patrick Smith | AUS | AUS | WC | 2-0 | Andreja Klepac / Edouard Roger-Vasselin |  SLO |  FRA | | 6-4 | 7-5 | | 1:06 (66-51) |
| Mon 21.01.19 157 | Bethanie Matek-Sands / Jamie Murray | USA | GBR | | 2-0 | Kristina Mladenovic / Robert Lindstedt | SLO | CRO | | 6-4 | 6-4 | | 1:12 (62-50) |
| Mon 21.01.19 157 | Abigail Spears / Juan Sebastian Cabal | USA | COL | 6 | 2-0 | Demi Schuurs / Matwe Middelkoop | NED | NED | | 6-1 | 6-2 | | 0:46 (53-26) |
| Tue 22.01.19 157 | Nicole Melichar / Bruno Soares | USA |  BRA | | 2-0 | Timea Babos / Marton Fucsovics |  HUN | HUN | | 6-3 | 6-2 | | 0:48 (55-35) |
| date | Pair 1 | sets | Pair 2 | set 1 | set 2 | TB | dur (pts) |
| Upper half |
| Sun 21.01.19 C3 | Gabriela Dabrowski / Mate Pavic | CAN | CRO | 1 | 2-0 | Priscilla Horn / Alexey Popyrin | AUS | AUS | WC | 6-3 | 6-3 | | 0:57 (59-44) |
| Sat 20.01.19 C19 | Hao-Ching Chan / Jean-Julien Rojer | TPE | NED | | 2-0 | Daniele Colins / Michael Venus | USA |  NZL | | 6-4 | 6-4 | | 1:11 (60-51) |
| Sun 21.01.19 157 | Maria Jose Martines Sanchez / Neal Skupski | ESP | GBR | | 2-0 | Katarina Srebotnik / Franco Skugor | SLO | CRO | | 6-3 | 6-3 | | 1:04 (59-43) |
| Sat 20.01.19 C8 | Jessica Moore / Andrew Whittington | AUS | AUS | WC | 2-1 | Makoto Ninomiya / Ben McLachlan |  JPN | JPN | | 6-2 | 3-6 | [10-5] | 1:09 (58-48) |
| Sun 21.01.19 MA | Barbora Krejcikova / Rajeev Ram | CZE | USA | 3 | 2-1 | Timea Bacsinsky / Nicolas Mahut | HUN | FRA | | 1-6 | 6-2 | [10-6] | 1:10 (55-52) |
| Sun 21.01.19 C8 | Iga Swiatek / Lukasz Kubot | POL | POL | WC | 2-1 | Alicja Rosolska / Nikola Mektic | POL | CRO | | 6-1 | 2-6 | [10-5] | 1:00 (52-46) |
| Sat 20.01.19 C8 | Samantha Sosur / Leander Paes | AUS | IND | | 2-0 | Kveta Peschke / Wesley Koolhof |  TCH | NED | | 6-4 | 7-5 | | 1:16 (67-55) |
| Sat 20.01.19 C15 | Anna-Lena Groenfeld / Robert Farah | GER | COL | | 2-1 | Zhaoxuan Yang / Rohan Bopanna |  CHN | IND | | 3-6 | 6-3 | [10-6] | 1:08 (53-50) |
| Bottom half |
| Sat 20.01.19 C19 | Andreja Klepac / Edouard Roger-Vasselin | SLO | FRA | | 2-0 | Ekaterina Makarova / Artem Sitak |  RUS | NZL | 8 | 6-3 | 6-4 | | 1:08 (62-50) |
| Fri 19.01.19 C20 | Astra Sharma / John-Patrick Smith | AUS | AUS | WC | 2-0 | Maddison Inglis / Jason Kubler | AUS | AUS | WC | 6-1 | 6-2 | | 0:47 (55-25) |
| Sun 21.01.19 157 | Kristina Mladenovic / Robert Lindstedt | SLO | CRO | | 2-0 | Johanna Larson / Dominic Inglot |  SWE | GBR | | 6-2 | 6-2 | | 0:49 (54-31) |
| Sun 21.01.19 C8 | Bethanie Matek-Sands / Jamie Murray | USA | GBR | | ret | Mihaela Buzarnesku / Oliver Marach |  ROU |  AUT | 4 | 4-1 | retired | 0:27 (19-11) |
| Sat 20.01.19 C15 | Abigail Spears / Juan Sebastian Cabal | USA | COL | 6 | 2-0 | Latisha Chan / Ivan Dodig | TPE | CRO | | 7-5 | 6-2 | | 1:13 (63-49) |
| Sat 20.01.19 C32 | Demi Schuurs / Matwe Middelkoop | NED | NED | | 2-0 | Monique Adamczak / Matt Ried | AUS | AUS | WC | 6-4 | 7-61 | | 1:11 (70-55) |
| Sat 20.01.19 C7 | Timea Babos / Marton Fucsovics | HUN | HUN | | 2-1 | Shuai Zhang / John Peers | CHN | AUS | WC | 6-3 | 4-6 | [10-7] | 1:14 (68-58) |
| Sun 21.01.19 157 | Nicole Melichar / Bruno Soares | USA | BRA | | 2-0 | Irina-Camelia Begu / Horia Tecau | ROU | ROU | | 6-1 | 6-3 | | 0:51 (57-31) |
