Stadium: Court B1 Round: 25 Ground: Hardcourt outdoor
| ITF Women Sharm El Sheikh | 2018/01/24 08:00 | Kai-Lin Zhang v Kumi So | 6-4,2-6,7-5 |
| ITF Women Guiyang | 2018/08/17 05:20 | Jovana Jaksic v Kai-Lin Zhang | 6-1,6-2 |
| ITF Women Guiyang | 2018/08/15 04:50 | Ying Zhang v Kai-Lin Zhang | 4-6,2-6 |
| ITF Women Guiyang | 2018/08/14 02:00 | Ziyue Sun v Kai-Lin Zhang | 1-6,1-6 |
| ITF Women Jinan | 2018/08/09 09:15 | Kai-Lin Zhang v Yafan Wang | 6-7,1-6 |
| ITF Women Jinan | 2018/08/07 07:00 | Shuyue Ma v Kai-Lin Zhang | 1-6,6-4,4-6 |
| ITF Women Nonthaburi | 2018/07/21 02:00 | Ya-Hsuan Lee v Kai-Lin Zhang | 6-1,6-3 |
| ITF Women Nonthaburi | 2018/07/20 05:45 | Hiroko Kuwata v Kai-Lin Zhang | 6-1,2-6,5-7 |
| ITF Women Nonthaburi | 2018/07/20 02:00 | Kai-Lin Zhang v Su Jeong Jang | 6-1,6-3 |
| ITF Women Tsukuba | 2018/08/20 01:00 | Rina Saigo v Kumi So | 3-6,1-6 |
| ITF Women Tsukuba | 2018/08/19 03:00 | Kumi So v Kotomi Takahata | 6-4,6-4 |
| ITF Women Figueira Da Foz Qual | 2018/07/16 12:00 | Cristina Bucsa v Kumi So | 6-1,6-0 |
| ITF Women Setubal Qual | 2018/07/08 13:00 | Kelly Williford v Kumi So | 2-6,6-7 |
| ITF Women Corroios-Seixal | 2018/07/05 11:00 | Eden Silva v Kumi So | 6-2,6-3 |
| ITF Women Corroios-Seixal | 2018/07/03 11:30 | Clemence Fayol v Kumi So | 6-2,4-6,3-6 |
| ITF Women Sharm El Sheikh | 2018/04/10 08:00 | Kumi So v Iryna Shymanovich | 4-6,4-6 |
| ITF Women Sharm El Sheikh | 2018/04/05 11:00 | Angelina Gabueva v Kumi So | 6-2,6-3 |