Round: 62 Ground: Clay
| ITF Japan F8 | 2018/06/09 06:40 | Tanaka, Yunosuke v James Trotter | 7-6,6-4 |
| ITF Japan F7 Qual | 2018/06/02 01:00 | Tanaka, Yunosuke v Kaneko, Takuya | 4-6,5-7 |
| ITF Japan F4 | 2018/03/24 00:00 | Tanaka, Yunosuke v Fujii, Shinta | 6-4,2-6,6-7 |
| ITF Japan F3 | 2018/03/17 00:30 | Kawahashi, Yuta v Tanaka, Yunosuke | 6-3,6-1 |
| ITF Japan F2 | 2018/03/15 01:00 | Tanaka, Yunosuke v Hong, Seong Chan | 3-6,3-6 |
| ITF Japan F2 | 2018/03/13 04:00 | Tanaka, Yunosuke v Sakai, Yuto | 6-4,4-6,7-6 |
| ITF Japan F1 | 2018/03/04 01:00 | Fujii, Sota v Tanaka, Yunosuke | 7-6,3-6,6-2 |
| Turkey F6, Singles Qualifying | 2018/02/13 10:30 | Samper-Montana, Jordi v Tanaka, Yunosuke | 6-2,6-3 |
| ITF Japan F8 | 2018/06/09 08:30 | Taketo Takamisawa v Tomohiro Masabayashi | 3-6,3-6 |
| ITF Japan F8 | 2018/06/09 01:00 | Seita Watanabe v Tomohiro Masabayashi | 7-6,5-7,4-6 |
| ITF Japan F7 | 2018/06/07 05:25 | Tomohiro Masabayashi v Makoto Ochi | 2-6,2-6 |
| ITF Japan F7 | 2018/06/04 01:00 | Yuichiro Inui v Tomohiro Masabayashi | 5-7,3-6 |
| ITF Japan F7 Qual | 2018/06/03 03:10 | Tomohiro Masabayashi v Ko Suzuki | 5-7,7-6,6-4 |
| ITF Japan F7 Qual | 2018/06/02 03:00 | Tomohiro Masabayashi v Kurita, Kenta | 6-2,6-3 |
| ITF Japan F5 | 2018/03/31 00:30 | Rio Noguchi v Tomohiro Masabayashi | 4-6,6-1,7-5 |
| ITF Japan F4 | 2018/03/25 01:00 | Tomohiro Masabayashi v Murray, Jack | 6-7,0-6 |