Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF Japan F8 | 2018/06/14 01:00 | Yuya Kibi v Yunosuke Tanaka | 6-3,6-2 |
| ITF Japan F8 | 2018/06/12 01:00 | Naru Shirafuji v Yunosuke Tanaka | 4-6,2-6 |
| ITF Japan F8 | 2018/06/11 00:00 | Yunosuke Tanaka v Tomohiro Masabayashi | 6-1,3-6,6-2 |
| ITF Japan F8 | 2018/06/09 06:40 | Yunosuke Tanaka v James Trotter | 7-6,6-4 |
| ITF Japan F7 Qual | 2018/06/02 01:00 | Yunosuke Tanaka v Takuya Kaneko | 4-6,5-7 |
| ITF Japan F4 | 2018/03/24 00:00 | Yunosuke Tanaka v Shinta Fujii | 6-4,2-6,6-7 |
| ITF Japan F3 | 2018/03/17 00:30 | Yuta Kawahashi v Yunosuke Tanaka | 6-3,6-1 |
| ITF Japan F2 | 2018/03/15 01:00 | Yunosuke Tanaka v Seong Chan Hong | 3-6,3-6 |
| Challenger Liuzhou | 2018/10/20 09:30 | Ryota Tanuma v Arjun Kadhe | 6-7,2-6 |
| Challenger Ningbo | 2018/10/15 02:30 | Saketh Myneni v Ryota Tanuma | 6-0,6-3 |
| Challenger Ningbo | 2018/10/14 06:30 | Ryota Tanuma v Wishaya Trongcharoenchaikul | 7-6,3-6,6-4 |
| Challenger Ningbo | 2018/10/13 05:10 | Weiqiang Zheng v Ryota Tanuma | 7-5,2-6,4-6 |
| ITF Thailand F4 | 2018/09/27 02:30 | Ryota Tanuma v Karunuday Singh | 2-6,6-7 |
| ITF Thailand F4 | 2018/09/26 02:30 | Ryota Tanuma v Palaphoom Kovapitukted | 3-6,7-5,6-3 |
| ITF Thailand F4 | 2018/09/25 04:05 | Ryota Tanuma v Suraj R Prabodh | 6-0,6-0 |
| Challenger Kaohsiung | 2018/09/16 02:00 | Ryota Tanuma v Frederico Ferreira Silva | 3-6,4-6 |