Stadium: Court 8 Round: 54 Ground: Synthetic outdoor
| ITF Japan F6 Qual | 2018/04/08 01:00 | Kaito Uesugi v Ko Suzuki | 7-6,6-4 |
| ITF Japan F5 | 2018/04/01 00:30 | Ko Suzuki v Kazuma Kawachi | 4-6,4-6 |
| ITF Japan F5 | 2018/03/31 00:30 | Yuichi Ito v Ko Suzuki | 6-7,2-6 |
| ITF Japan F4 | 2018/03/25 01:00 | Tamaki Yamao v Ko Suzuki | 6-4,6-2 |
| ITF Japan F3 | 2018/03/17 02:30 | Gengo Kikuchi v Ko Suzuki | 6-2,3-6,6-3 |
| Challenger Kyoto Qual | 2018/02/19 01:30 | Ko Suzuki v Takanyi Garanganga | 5-7,4-6 |
| Challenger Kyoto Qual | 2018/02/18 02:45 | Naoki Nakagawa v Ko Suzuki | 6-7,6-7 |
| Challenger Kyoto Qual | 2018/02/17 02:30 | Makoto Ochi v Ko Suzuki | 6-4,4-6,6-7 |
| ITF Japan F5 | 2018/04/02 04:10 | Yuki Matsuo v Hiroyasu Ehara | 2-6,2-6 |
| ITF Japan F4 | 2018/03/26 01:00 | Ryota Tanuma v Yuki Matsuo | 6-2,6-1 |
| ITF Japan F4 | 2018/03/25 01:00 | Yuki Matsuo v Masamichi Imamura | 6-3,6-0 |
| ITF Japan F2 | 2018/03/11 04:00 | Jack Murray v Yuki Matsuo | 6-1,6-4 |
| ITF Japan F1 | 2018/03/05 01:00 | Jack Murray v Yuki Matsuo | 6-1,6-1 |
| ITF Japan F1 | 2018/03/03 03:00 | Hayato Kudo v Yuki Matsuo | 2-6,2-6 |
| ITF Vietnam F3 | 2017/11/20 03:00 | Yuki Matsuo v Tsung-Hao Huang | 2-6,3-6 |
| ITF Vietnam F2 | 2017/11/12 05:00 | Cesar Testoni v Yuki Matsuo | 6-3,3-6,6-4 |