Stadium: Centre Court Round: 25 Ground: Carpet indoor
| WTA - Mumbaï | 2018/10/30 09:05 | Ng, Kwan Yau v Valentini Grammatikopoulou | 0-6,2-6 |
| Taipei, Taipei Chinois | 2018/11/11 06:40 | Karman Kaur Thandi v Ng, Kwan Yau | 6-4,6-4 |
| WTA - Mumbaï | 2018/10/30 09:05 | Ng, Kwan Yau v Valentini Grammatikopoulou | 0-6,2-6 |
| Suzhou, Simples W-WITF-CHN-16A | 2018/10/14 04:05 | Peangtarn Plipuech v Ng, Kwan Yau | 6-1,6-0 |
| WTA Hong Kong | 2018/10/06 05:40 | Fanny Stollar v Ng, Kwan Yau | 6-0,6-2 |
| ITF Women Anning | 2018/09/26 02:00 | Ng, Kwan Yau v Meiqi Guo | 1-6,2-6 |
| ITF Women Anning | 2018/09/25 05:10 | Ng, Kwan Yau v Liu, Yi | 6-2,6-3 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/09/04 05:30 | Ng, Kwan Yau v Kuearum, Supapitch | 3-6,4-6 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/29 02:00 | Ng, Kwan Yau v Lee, Hua-Chen | 1-6,2-6 |
| Shenzhen, Simples W-WITF-CHN-02A | 2018/11/09 04:05 | Saisai Zheng v Valentini Grammatikopoulou | 6-2,6-1 |
| Shenzhen, Simples W-WITF-CHN-02A | 2018/11/08 04:15 | Elena Rybakina v Valentini Grammatikopoulou | 4-6,6-3,3-6 |
| Shenzhen, Simples W-WITF-CHN-02A | 2018/11/06 04:15 | Valentini Grammatikopoulou v Nao Hibino | 6-3,6-4 |
| WTA - Mumbaï | 2018/11/02 14:35 | Irina Khromacheva v Valentini Grammatikopoulou | 7-5,4-6,6-1 |
| WTA - Mumbaï | 2018/10/31 10:30 | Valentini Grammatikopoulou v Khazaniuk, Deniz | 6-3,4-6,6-4 |
| WTA - Mumbaï | 2018/10/30 09:05 | Ng, Kwan Yau v Valentini Grammatikopoulou | 0-6,2-6 |
| WTA Moscow | 2018/10/17 10:45 | Valentini Grammatikopoulou v Anastasia Pavlyuchenkova | 5-7,0-6 |
| WTA Moscow | 2018/10/15 08:00 | Ons Jabeur v Valentini Grammatikopoulou | 7-5,6-1 |