| ITF Japan F8 | 2016/06/13 01:00 | Kato, Shoma v Nouchi, Kennosuke | 6-2,3-6,6-3 |
| ITF Japan F7 Qual | 2016/06/04 01:00 | Rio Noguchi v Kato, Shoma | 7-5,6-2 |
| ITF Japan F6 Qual | 2016/05/29 01:00 | Ito, Yuya v Kato, Shoma | 6-4,6-2 |
| ITF Japan F6 Qual | 2016/05/28 01:00 | Nouchi, Kennosuke v Kato, Shoma | 4-6,3-6 |
| ITF Japan F4 | 2016/03/26 00:00 | Kato, Shoma v Kazuma Kawachi | 2-6,4-6 |
| ITF Japan F3 | 2016/03/19 00:30 | Wishaya Trongcharoenchaikul v Kato, Shoma | 6-3,6-1 |
| ITF Japan F1 | 2016/03/10 05:35 | Singh, Karunuday v Kato, Shoma | 6-0,6-1 |
| ITF Japan F7 | 2016/06/07 01:00 | Watanuki, Keisuke v Niki, Takuto | 6-4,7-6 |
| ITF Japan F6 | 2016/05/31 01:00 | Niki, Takuto v Oku, Hiromasa | 2-6,3-6 |
| ITF Guam F1 | 2016/05/27 01:25 | Whittington, Andrew v Niki, Takuto | 4-6,6-4,6-4 |
| ITF Guam F1 | 2016/05/24 06:30 | Oljaca, Mark v Niki, Takuto | 4-6,0-6 |
| ITF Japan F5 | 2016/04/08 06:25 | Niki, Takuto v Katayama, Sho | 7-6,2-6,3-6 |
| ITF Japan F5 | 2016/04/06 03:40 | Niki, Takuto v Ko Suzuki | 6-4,3-6,6-2 |
| ITF Japan F4 | 2016/03/30 01:00 | Niki, Takuto v Tanuma, Ryota | 4-6,5-7 |
| ITF Japan F3 | 2016/03/21 03:45 | Gao, Xin v Niki, Takuto | 2-6,6-2,6-2 |