| ITF Japan F3 | 2015/03/21 04:00 | Ko Suzuki v Ryotaro Matsumura | 6-0,6-1 |
| ITF Japan F2 | 2015/03/17 05:25 | Ko Suzuki v Soichiro Moritani | 6-3,3-6,2-6 |
| ITF Japan F1 | 2015/03/11 01:00 | Jarryd Chaplin v Ko Suzuki | 6-4,6-4 |
| ITF Chinese Taipei F1 | 2014/08/27 02:00 | Kento Takeuchi v Ko Suzuki | 6-0,6-4 |
| ITF Chinese Taipei F1 | 2014/08/20 02:00 | Takuto Niki v Ko Suzuki | 6-4,6-0 |
| ITF Thailand F9 | 2014/07/07 05:35 | Vishnu Vardhan v Ko Suzuki | 7-6,6-4 |
| ITF Thailand F10 | 2014/07/03 04:50 | Ti Chen v Ko Suzuki | 6-3,6-3 |
| ITF Thailand F10 | 2014/07/02 07:30 | Ko Suzuki v Kittiphong Wachiramanowong | 6-3,7-6 |
| ITF Japan F3 | 2015/03/22 01:00 | Masaki Osafune v Jeamoon Lee | 4-6,3-6 |