Stadium: Court 1 Round: 64
| ITF Women Singapore | 2018/06/07 03:00 | Mai Minokoshi v Hiroko Kuwata | 1-6,1-6 |
| ITF Women Gatineau | 2017/07/17 14:00 | Hiroko Kuwata v Mai Minokoshi | 1-6,6-4,6-1 |
| WTA Nanchang Qual | 2018/07/21 12:20 | Mai Minokoshi v Yue Yuan | 4-6,6-3,6-2 |
| ITF Women Astana | 2018/07/19 05:00 | Mai Minokoshi v Ekaterina Yashina | 3-6,4-6 |
| ITF Women Astana | 2018/07/17 07:00 | Mai Minokoshi v Dariya Detkovskaya | 6-1,7-5 |
| ITF Women Honolulu | 2018/07/13 20:00 | Emina Bektas v Mai Minokoshi | 6-3,6-2 |
| ITF Women Honolulu | 2018/07/12 21:20 | Mai Minokoshi v Grace Min | 4-6,6-3,7-5 |
| ITF Women Hong Kong | 2018/06/21 02:00 | Mai Minokoshi v Eudice Chong | 1-6,3-6 |
| ITF Women Hong Kong | 2018/06/20 04:40 | Mai Minokoshi v Ao Gai | 6-3,6-4 |
| ITF Women Hong Kong | 2018/06/18 02:00 | Mai Minokoshi v Yuqi Sheng | 6-1,6-4 |
| WTA Nanchang Qual | 2018/07/21 13:10 | Chantal Skamlova v Hiroko Kuwata | 4-6,0-6 |
| 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 | Hiroko Kuwata v Rutuja Bhosale | 6-2,6-1 |
| ITF Women Nonthaburi | 2018/07/19 05:00 | Hiroko Kuwata v Pei-Chi Lee | 6-3,4-6,6-4 |
| ITF Women Nonthaburi | 2018/07/16 05:30 | Hiroko Kuwata v Misa Eguchi | 6-4,6-4 |
| ITF Women Nonthaburi | 2018/07/12 02:00 | Risa Ozaki v Hiroko Kuwata | 6-2,4-6,6-2 |
| ITF Women Nonthaburi | 2018/07/11 04:05 | Patcharin Cheapchandej v Hiroko Kuwata | 1-6,3-6 |
| ITF Women Nonthaburi | 2018/07/09 02:00 | Aunchisa Chanta v Hiroko Kuwata | 7-6,4-6,2-6 |