Stadium: Court F Round: 45 Ground: Hardcourt indoor
| ITF USA F26 | 2018/09/30 18:00 | Shabaz, Michael v Niki, Takuto | 3-6,6-3,3-6 |
| ITF USA F26 | 2018/09/29 18:00 | Niki, Takuto v Strong Kirchheimer | 3-6,6-1,6-3 |
| ITF USA F26 | 2018/09/28 17:00 | Kohen, Alan v Niki, Takuto | 6-7,4-6 |
| ITF USA F26 | 2018/09/27 17:00 | Emilio Nava v Niki, Takuto | 4-6,6-7 |
| ITF USA F26 | 2018/09/26 17:00 | Woldeab, Siem v Niki, Takuto | 2-6,2-6 |
| ITF USA F25 | 2018/09/20 20:25 | Niki, Takuto v Emilio Nava | 3-6,1-6 |
| ITF USA F25 | 2018/09/19 21:30 | Niki, Takuto v Zachary Svajda | 6-4,6-2 |
| Canada F7, Singles | 2018/09/13 15:00 | Pervolarakis, Michail v Niki, Takuto | 6-3,7-6 |
| ITF Japan F5 | 2018/04/06 01:00 | Li, Zhe v Taisei Ichikawa | 6-2,7-6 |
| ITF Japan F5 | 2018/04/04 01:00 | Taisei Ichikawa v Renta Tokuda | 6-3,6-3 |
| ITF Japan F5 | 2018/04/03 01:00 | Liu, Shao-Fan v Taisei Ichikawa | 6-7,0-6 |
| ITF Japan F8 | 2017/06/14 03:00 | Nagao, Katsuki v Taisei Ichikawa | 6-0,6-1 |
| ITF Japan F8 | 2017/06/11 00:00 | Kazuma Kawachi v Taisei Ichikawa | 6-2,5-7,2-6 |
| ITF Japan F8 | 2017/06/10 00:00 | Kousuke Ogura v Taisei Ichikawa | 2-6,2-6 |