Stadion: Court 8 Round: 25 Ground: Synthetic outdoor
| ITF - Japan F6 - Qualifikation | 2018/04/09 01:00 | Kaito Uesugi v Takuya Kumasaka | 6-3,6-1 |
| ITF - Japan F6 - Qualifikation | 2018/04/08 01:00 | Takuya Kumasaka v David Barclay | 5-7,6-3,6-1 |
| ITF - Japan F4 | 2018/03/24 00:00 | Takuya Kumasaka v Masaki Sasai | 3-6,6-4,3-6 |
| ITF - Japan F3 | 2018/03/17 00:30 | Ryohei Tagata 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 F4 | 2017/03/25 01:00 | Taisei Miyamoto v Takuya Kumasaka | 6-2,6-3 |
| ITF - Japan F3 | 2017/03/18 05:00 | Masamichi Imamura v Takuya Kumasaka | 7-6,7-5 |
| ITF - Vietnam F3 | 2018/05/16 03:00 | Cheng-Yu Yu v Gengo Kikuchi | 6-3,6-1 |
| ITF - Vietnam F3 | 2018/05/15 05:45 | Phuong Van Nguyen v Gengo Kikuchi | 4-6,2-6 |
| ITF - Vietnam F3 | 2018/05/13 04:00 | Gengo Kikuchi v Thanapet Chanta | 7-6,6-4 |
| ITF - Vietnam F2 | 2018/05/12 04:45 | Gengo Kikuchi v Ji Sung Nam | 4-6,3-6 |
| ITF - Vietnam F2 | 2018/05/11 03:00 | Gengo Kikuchi v Ryota Tanuma | 6-4,6-2 |
| ITF - Vietnam F2 | 2018/05/08 03:00 | Gengo Kikuchi v Pak Long Yeung | 4-6,7-5,6-2 |
| ITF - Vietnam F2 | 2018/05/06 04:00 | Gengo Kikuchi v Niki Kaliyanda Poonacha | 6-1,6-1 |
| ITF - Vietnam F2 | 2018/05/05 03:00 | Gengo Kikuchi v Yuichiro Inui | 6-4,6-4 |