Stadium: Court 8 Round: 54 Ground: Synthetic outdoor
| ITF Japan F7 Qual | 2018/06/02 01:00 | Kishi, Ryota v Papez, Ziga | 6-1,6-0 |
| ITF Japan F6 Qual | 2018/04/09 01:00 | Sho Shimabukuro v Kishi, Ryota | 6-3,6-1 |
| ITF Japan F6 Qual | 2018/04/08 04:00 | Kishi, Ryota v Masaya Kobayashi | 6-2,6-1 |
| ITF Japan F5 | 2018/03/31 00:30 | Cing-Yang Meng v Kishi, Ryota | 6-4,7-5 |
| ITF Japan F4 | 2018/03/25 01:00 | Rigele Te v Kishi, Ryota | 6-1,7-5 |
| ITF Japan F4 | 2018/03/24 00:00 | Takamura, Yuki v Kishi, Ryota | 3-6,5-7 |
| ITF Japan F3 | 2018/03/17 00:30 | Tashiro, Yuga v Kishi, Ryota | 6-7,6-3,6-0 |
| ITF Japan F2 | 2018/03/11 00:30 | Ito, Yuichi v Kishi, Ryota | 7-6,7-5 |
| ITF Japan F7 Qual | 2018/06/02 01:00 | Yamanaka, Kyohei v Cajigan, Christopher | 7-6,6-0 |