| 18th Jan - 09h50 |  Tamara Korpatsch
 Elixane Lechemia | def. | Clara Burel
Diane Parry | 7-6 6-3 |
| 16th Jan - 04h30 |  Katarzyna Kawa
 Marta Kostyuk | def. | Tatjana Maria
 Arantxa Rus | 6-0 6-2 |
| 19th Jan - 02h30 |  Timea Babos
Anna Bondar | def. |  Angelica Moratelli
 Samantha Murray Sharan | 4-6 6-1 7-6 |
| 16th Jan - 05h30 | Caroline Garcia
Kristina Mladenovic | def. |  Bethanie Mattek-Sands
 Xin-yu Wang | 4-6 7-6 6-2 |
| Lyudmyla Kichenok
 Jelena Ostapenko | def. | Emina Bektas
Kayla Day | 6-4 7-6 |
| 17th Jan - 08h05 |  Kimberly Birrell
Olivia Gadecki | def. | Varvara Gracheva
Sabrina Santamaria | 6-0 6-3 |
| 17th Jan - 04h25 |  Linda Noskova
Xiyu Wang | def. | Talia Gibson
Priscilla Hon | 3-6 6-3 6-4 |
| 18th Jan - 01h10 |  Fang-hsien Wu
Lin Zhu | def. | Nicole Melichar-Martinez
Ellen Perez | 3-6 6-3 7-6 |
|  Gabriela Dabrowski
 Erin Routliffe | def. | Linda Fruhvirtova
Ashlyn Krueger | 6-1 7-5 |
| 16th Jan - 06h00 |  Veronika Kudermetova
Anastasia Pavlyuchenkova | def. | Anastasia Potapova
Yana Sizikova | 2-6 6-2 6-2 |
| 19th Jan - 01h00 | Hanyu Guo
Xinyu Jiang | def. | Bibiane Schoofs
 Kimberley Zimmermann | 6-7 6-4 6-1 |
| 18th Jan - 01h10 |  Eri Hozumi
Makoto Ninomiya | def. | Sophie Chang
Alycia Parks | 4-6 7-5 7-6 |
| 18th Jan - 01h10 |  Cristina Bucsa
Alexandra Panova | def. | Marie Bouzkova
Sara Sorribes Tormo | 6-2 2-6 6-4 |
| Lusine Avanesyan
 Iryna Shymanovich | def. | Danielle Rose Collins
Nadiia Kichenok | 2-6 6-4 6-1 |
| 17th Jan - 08h50 | Anna Blinkova
Aliaksandra Sasnovich | def. | Mirra Andreeva
 Viktoriya Tomova | 6-4 6-0 |
| 16th Jan - 06h00 |  Beatriz Haddad Maia
Taylor Townsend | def. |  Tereza Mihalikova
Yi-Fan Xu | 7-5 6-2 |
| 18th Jan - 10h25 | Barbora Krejcikova
Laura Siegemund | def. | Katie Boulter
 Petra Martic | 6-2 6-1 |
| 17th Jan - 09h25 | Yafan Wang
Yue Yuan | def. | Lucia Bronzetti
Heather Watson | 6-3 6-3 |
| 17th Jan - 07h45 | Emma Navarro
Diana Shnaider | def. | Anhelina Kalinina
Anna Karolína Schmiedlová | 7-5 6-0 |
| 18th Jan - 01h10 | Hao-Ching Chan
 Giuliana Olmos | def. | Sofia Kenin
Asia Muhammad | 6-7 6-3 7-5 |
| 16th Jan - 06h00 | Ekaterina Alexandrova
Anna Kalinskaya | def. | Miyu Kato
 Aldila Sutjiadi | 6-3 0-6 7-5 |
| 16th Jan - 06h30 | Taylah Preston
Arina Rodionova | def. | Kaylah McPhee
Astra Sharma | 7-6 7-6 |
| 17th Jan - 05h55 | Destanee Aiava
Maddison Inglis | def. | Elisabetta Cocciaretto
Martina Trevisan | 1-6 6-1 6-2 |
| 16th Jan - 04h30 | Storm Hunter-Sanders
Katerina Siniaková | def. |  Maria Camila Osorio Serrano
 Yulia Putintseva | 7-5 7-5 |
| 18th Jan - 06h05 | Desirae Krawczyk
Ena Shibahara | def. | Irina Khromacheva
Miriam Kolodziejová | 6-1 6-4 |
| 16th Jan - 03h00 |  Ana Bogdan
Rebeka Masarova | def. |  Ulrikke Eikeri
Catherine Harrison | 6-4 6-4 |
| Caroline Dolehide
Peyton Stearns | def. | Anna Danilina
Viktoria Hruncakova | 6-7 6-4 6-4 |
| 18th Jan - 06h05 | Demi Schuurs
Luisa Stefani | def. | Sorana Cirstea
Donna Vekic | 6-2 7-5 |
| Sara Errani
Jasmine Paolini | def. | Ingrid Martins
Monica Niculescu | 6-3 6-1 |
| 19th Jan - 01h00 | Shuko Aoyama
 Aleksandra Krunic | def. | Lidziya Marozava
Katarzyna Piter | 6-1 6-1 |
| 17th Jan - 10h10 | Daria Saville-Gavrilova
Ajla Tomljanovic | def. |  Oksana Kalashnikova
Maia Lumsden | 6-4 6-3 |
| 18th Jan - 07h05 | Su-Wei Hsieh
Elise Mertens | def. | Greet Minnen
Yanina Wickmayer | 6-2 6-1 |
