Stadium: Indoor D1 Round: 62 Ground: Clay
| ITF Japan F8 | 2018/06/09 01:00 | Takuya Kumasaka v Tagashira, Kento | 7-6,6-0 |
| ITF Japan F7 | 2018/06/05 01:00 | Takuya Kumasaka v Kikuchi, Gengo | 6-3,3-6,4-6 |
| ITF Japan F6 Qual | 2018/04/09 01:00 | Kaito Uesugi v Takuya Kumasaka | 6-3,6-1 |
| ITF Japan F6 Qual | 2018/04/08 01:00 | Takuya Kumasaka v Barclay, David | 5-7,6-3,6-1 |
| ITF Japan F4 | 2018/03/24 00:00 | Takuya Kumasaka v Sasai, Masaki | 3-6,6-4,3-6 |
| ITF Japan F3 | 2018/03/17 00:30 | Tagata, Ryohei v Takuya Kumasaka | 6-0,6-2 |
| ITF Japan F1 | 2018/03/08 07:20 | Takuya Kumasaka v Wishaya Trongcharoenchaikul | 6-1,0-6,3-6 |
| ITF Japan F1 | 2018/03/07 03:10 | Takuya Kumasaka v Milan Drinic | 6-1,6-1 |
| ITF Japan F7 Qual | 2018/06/02 03:00 | Ko Suzuki v Matsuo, Yuki | 5-7,6-0,6-4 |
| ITF Japan F5 | 2018/04/02 04:10 | Matsuo, Yuki v Ehara, Hiroyasu | 2-6,2-6 |
| ITF Japan F4 | 2018/03/26 01:00 | Tanuma, Ryota v Matsuo, Yuki | 6-2,6-1 |
| ITF Japan F4 | 2018/03/25 01:00 | Matsuo, Yuki v Masamichi Imamura | 6-3,6-0 |
| ITF Japan F2 | 2018/03/11 04:00 | Murray, Jack v Matsuo, Yuki | 6-1,6-4 |
| ITF Japan F1 | 2018/03/05 01:00 | Murray, Jack v Matsuo, Yuki | 6-1,6-1 |
| ITF Japan F1 | 2018/03/03 03:00 | Kudo, Hayato v Matsuo, Yuki | 2-6,2-6 |
| ITF Vietnam F3 | 2017/11/20 03:00 | Matsuo, Yuki v Tsung-Hao Huang | 2-6,3-6 |