| ITF Chinese Taipei F1 | 2014/08/20 02:00 | Niki, Takuto v Ko Suzuki | 6-4,6-0 |
| ITF Japan F4 | 2016/03/30 01:00 | Niki, Takuto v Ryota Tanuma | 4-6,5-7 |
| ITF Japan F3 | 2016/03/21 03:45 | Gao, Xin v Niki, Takuto | 2-6,6-2,6-2 |
| ITF Japan F2 | 2016/03/15 02:25 | Niki, Takuto v Yunseong Chung | 3-6,6-3,3-6 |
| ITF Japan F1 | 2016/03/12 01:00 | Niki, Takuto v Kikuchi, Gengo | 6-7,6-4,3-6 |
| ITF Japan F1 | 2016/03/10 08:25 | Niki, Takuto v He, Yecong | 6-2,6-1 |
| ITF Japan F1 | 2016/03/10 02:35 | Niki, Takuto v Watanuki, Keisuke | 7-5,6-2 |
| Challenger Launceston | 2016/02/03 04:30 | Golubev, Andrey v Niki, Takuto | 6-1,6-3 |
| Challenger Launceston | 2016/02/01 00:30 | Niki, Takuto v Kelly, Dayne | 7-6,6-1 |
| ITF Japan F5 | 2016/04/04 00:30 | Ko Suzuki v Taisei Miyamoto | 6-3,6-3 |
| ITF Japan F4 | 2016/03/26 02:00 | Brandon Walkin v Ko Suzuki | 6-3,6-3 |
| ITF Japan F3 | 2016/03/19 03:45 | Oku, Hiromasa v Ko Suzuki | 5-7,7-6,7-5 |
| ITF Japan F3 | 2016/03/19 00:30 | Habusawa, Tetsuro v Ko Suzuki | 2-6,2-6 |
| ITF Japan F2 | 2016/03/14 02:40 | Shintaro Imai v Ko Suzuki | 6-3,6-0 |
| ITF Japan F2 | 2016/03/13 01:00 | Wishaya Trongcharoenchaikul v Ko Suzuki | 3-6,4-6 |
| ITF Japan F2 | 2016/03/12 02:00 | Ko Suzuki v Renta Tokuda | 6-1,4-6,7-5 |
| ITF Japan F1 | 2016/03/10 03:45 | He, Yecong v Ko Suzuki | 6-4,2-6,6-4 |