Ground: Hardcourt outdoor
| 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 Thailand F10 | 2014/07/01 07:05 | Ko Suzuki v Chaleechan Tanasugarn | 6-1,6-3 |
| ITF USA F9 Qual | 2015/02/22 16:00 | Wil Spencer v Ryotaro Matsumura | 7-6,5-7,6-2 |
| ITF USA F9 Qual | 2015/02/21 19:00 | Ryotaro Matsumura v Kaptan Kaster | 6-2,6-0 |
| ITF Peru F1 | 2014/10/21 15:00 | Gonzalo Escobar v Ryotaro Matsumura | 6-0,6-1 |
| ITF Peru F1 | 2014/10/18 14:30 | Michel Vernier v Ryotaro Matsumura | 6-7,1-6 |
| ITF Peru F1 | 2014/10/14 14:30 | Ryotaro Matsumura v Gonzalo Escobar | 0-6,4-6 |
| ITF Peru F1 | 2014/10/07 18:00 | Ryotaro Matsumura v Michael Linzer | 1-6,1-6 |