Stadium: Court 7 Round: 26
| ITF Women Taipei | 2018/07/24 03:45 | Ting-Pei Chang v Ayumi Koshiishi | 2-6,1-6 |
| ITF Women Hong Kong | 2018/07/13 03:00 | Sakura Hosogi v Ayumi Koshiishi | 3-6,6-4,6-3 |
| ITF Women Hong Kong | 2018/07/12 02:00 | Ayumi Koshiishi v Zeel Desai | 7-5,6-1 |
| ITF Women Hong Kong | 2018/07/11 02:00 | Ayumi Koshiishi v Prerna Bhambri | 6-2,6-2 |
| ITF Women Hong Kong | 2018/07/10 03:50 | Ayumi Koshiishi v Haine Ogata | 6-1,6-4 |
| ITF Women Singapore Qual | 2018/06/10 02:00 | Deria Nur Haliza v Ayumi Koshiishi | 1-6,6-4,6-3 |
| ITF Women Singapore | 2018/06/04 02:00 | Ayumi Koshiishi v Hiroko Kuwata | 6-7,7-6,4-6 |
| ITF Women Singapore Qual | 2018/06/03 03:20 | Ayumi Koshiishi v Khee Yen Wee | 6-3,6-1 |
| ITF Women Taipei | 2018/07/25 02:00 | Gabriella Da Silva Fick v Hua-Chen Lee | 6-4,6-7,4-6 |
| ITF Women Baton Rouge | 2018/06/19 18:45 | Luisa Stefani v Hua-Chen Lee | 7-6,6-4 |
| ITF Women Pelham | 2018/04/12 18:25 | Tamaryn Hendler v Hua-Chen Lee | 7-6,6-7,6-2 |
| ITF Women Pelham Qual | 2018/04/10 15:00 | Hua-Chen Lee v Catherine Harrison | 6-4,6-2 |
| ITF Women Pelham Qual | 2018/04/09 15:00 | Hua-Chen Lee v Csilla Fodor | 6-3,6-3 |
| ITF Women Pelham Qual | 2018/04/08 15:00 | Hua-Chen Lee v Amber O'Dell | 6-0,6-2 |
| ITF Women Jackson Qual | 2018/04/02 18:00 | Hua-Chen Lee v Sophia Hatton | 3-6,6-1,3-6 |
| ITF Women Jackson Qual | 2018/04/01 19:30 | Hua-Chen Lee v Elizabet Verizova | 6-1,6-4 |