Round: 29 Ground: Hardcourt outdoor
| ITF Women Kashiwa | 2017/04/05 03:30 | Haruka Kaji v Hiroko Kuwata | 4-6,6-3,6-1 |
| ITF Women Liuzhou | 2017/10/27 03:00 | Nao Hibino v Hiroko Kuwata | 6-2,6-2 |
| ITF Women Liuzhou | 2017/10/26 04:30 | Hiroko Kuwata v Eri Hozumi | 6-4,6-1 |
| ITF Women Liuzhou | 2017/10/25 02:00 | Ingrid Neel v Hiroko Kuwata | 4-6,4-6 |
| ITF Women Suzhou | 2017/10/18 06:40 | Kaja Juvan v Hiroko Kuwata | 6-2,6-1 |
| WTA Tianjin Qual | 2017/10/08 04:30 | Arina Rodionova v Hiroko Kuwata | 6-1,6-4 |
| WTA Tianjin Qual | 2017/10/07 09:15 | Alla Kudryavtseva v Hiroko Kuwata | 3-6,3-6 |
| WTA Guangzhou Qual | 2017/09/16 06:25 | Kyoka Okamura v Hiroko Kuwata | 6-4,7-6 |
| WTA Tokyo Qual | 2017/09/09 02:00 | Hiroko Kuwata v Karolina Muchova | 4-6,2-6 |
| ITF Women Hamamatsu | 2017/10/18 01:40 | Haruka Kaji v Ingrid Neel | 3-6,7-6,1-6 |
| ITF Women Makinohara | 2017/10/13 00:30 | Miyabi Inoue v Haruka Kaji | 2-6,6-2,6-4 |
| ITF Women Makinohara | 2017/10/12 02:10 | Rika Fujiwara v Haruka Kaji | 1-6,6-3,5-7 |
| ITF Women Makinohara | 2017/10/10 02:25 | Tori Kinard v Haruka Kaji | 5-7,5-7 |
| WTA Tokyo Qual | 2017/09/16 01:00 | Madison Brengle v Haruka Kaji | 6-3,6-4 |
| ITF Women Kyoto | 2017/09/08 03:35 | Haruka Kaji v Katy Dunne | 3-6,4-6 |
| ITF Women Kyoto | 2017/09/07 03:45 | Lauren Albanese v Haruka Kaji | 4-6,2-6 |
| ITF Women Kyoto | 2017/09/06 03:55 | Akari Inoue v Haruka Kaji | 6-3,5-7,4-6 |