| ITF Japan F6 Qual | 2014/06/09 03:00 | Keisuke Watanuki v Koichi Sano | 6-4,6-0 |
| ITF Japan F6 Qual | 2014/06/07 00:00 | Yusei Fukuoka v Koichi Sano | 0-6,2-6 |
| ITF Japan F5 | 2014/06/03 02:30 | Koichi Sano v Yuya Kibi | 4-6,2-6 |
| ITF Guam F1 | 2014/05/27 02:45 | Jeevan Nedunchezhiyan v Koichi Sano | 6-2,6-4 |
| 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 Thailand F10 | 2014/06/26 03:00 | Ko Suzuki v Pruchya Isarow | 4-6,4-6 |
| ITF Thailand F10 | 2014/06/25 06:55 | Vishnu Vardhan v Ko Suzuki | 2-6,1-6 |