Round: 25 Ground: Clay
| ITF Japan F7 | 2017/06/06 04:45 | Ryota Kishi v Sho Katayama | 2-6,2-6 |
| ITF Japan F6 | 2017/05/29 04:20 | Ryota Kishi v Gengo Kikuchi | 7-6,3-6,2-6 |
| ITF Chinese Taipei F1 | 2016/10/12 02:00 | Ryota Kishi v Ryota Tanuma | 3-6,2-6 |
| ITF Korea F8 | 2016/09/06 04:15 | Sanhui Shin v Ryota Kishi | 6-3,6-2 |
| ITF Korea F7 | 2016/08/29 02:30 | Ryota Kishi v Hong Chung | 2-6,7-6,3-6 |
| ITF Spain F26 | 2016/08/17 13:00 | Ryota Kishi v Bernabe Zapata Miralles | 1-6,2-6 |
| ITF Spain F26 | 2016/08/16 14:35 | Harrison Lombe v Ryota Kishi | 6-3,2-6,5-7 |
| ITF Spain F25 | 2016/08/10 10:30 | Andres Artunedo Martinavarr v Ryota Kishi | 6-3,6-4 |
| ITF Japan F8 | 2017/06/12 00:00 | Keisuke Watanuki v Kazuki Nishiwaki | 6-2,6-2 |
| ITF Japan F8 | 2017/06/10 04:00 | Keisuke Watanuki v Taketo Takamisawa | 4-6,6-2,6-3 |
| ITF Japan F7 | 2017/06/08 01:30 | Keisuke Watanuki v Kento Takeuchi | 3-6,5-7 |
| ITF Japan F6 Qual | 2017/05/29 01:00 | Keisuke Watanuki v Yuto Sakai | 6-7,6-7 |
| ITF Japan F6 Qual | 2017/05/28 07:00 | Keisuke Watanuki v Yuto Sakai | 6-7,6-7 |
| ITF Japan F6 Qual | 2017/05/27 01:00 | Keisuke Watanuki v Sung Min Han | 6-4,6-0 |
| ITF Japan F5 | 2017/04/02 01:00 | Masaki Sasai v Keisuke Watanuki | 6-2,6-4 |
| ITF Japan F5 | 2017/04/01 02:00 | Takashi Yasugami v Keisuke Watanuki | 4-6,6-2,5-7 |