Stadium: Court 8 Round: 26 Ground: Hardcourt outdoor
| ITF Japan F2 | 2017/03/14 04:15 | Yunosuke Tanaka v Takuto Niki | 4-6,4-6 |
| 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 Kobe | 2018/11/10 05:15 | Takuto Niki v Taisei Ichikawa | 6-2,6-7,3-6 |
| ITF USA F26 | 2018/09/30 18:00 | Michael Shabaz v Takuto Niki | 3-6,6-3,3-6 |
| ITF USA F26 | 2018/09/29 18:00 | Takuto Niki v Strong Kirchheimer | 3-6,6-1,6-3 |
| ITF USA F26 | 2018/09/28 17:00 | Alan Kohen v Takuto Niki | 6-7,4-6 |
| ITF USA F26 | 2018/09/27 17:00 | Emilio Nava v Takuto Niki | 4-6,6-7 |
| ITF USA F26 | 2018/09/26 17:00 | Siem Woldeab v Takuto Niki | 2-6,2-6 |
| ITF USA F25 | 2018/09/20 20:25 | Takuto Niki v Emilio Nava | 3-6,1-6 |
| ITF USA F25 | 2018/09/19 21:30 | Takuto Niki v Zachary Svajda | 6-4,6-2 |