Stadium: C Round: 26
| ITF Vietnam F1 | 2018/05/01 03:00 | Darren Polkinghorne v Phuong Van Nguyen | 3-6,3-6 |
| ITF Vietnam F1 | 2017/11/08 03:00 | Phuong Van Nguyen v Nam Hoang Ly | 4-6,0-6 |
| ITF Vietnam F1 | 2017/11/06 04:20 | Yu Hsiou Hsu v Phuong Van Nguyen | 4-6,3-6 |
| ATP Paris MD | 2016/11/01 03:55 | Phuong Van Nguyen v Jui-Chen Hung | 1-6,0-6 |
| ITF Vietnam F8 | 2016/10/26 03:00 | Maciej Smola v Phuong Van Nguyen | 6-2,6-1 |
| ITF Vietnam F7 | 2016/10/16 03:00 | Mohd Assri Merzuki v Phuong Van Nguyen | 7-5,6-3 |
| ITF Vietnam F7 | 2016/10/15 04:30 | Phuong Van Nguyen v Brant Vaughan Switzler | 6-2,6-4 |
| ITF Vietnam F6 - Final | 2016/09/27 06:55 | Phuong Van Nguyen v Masato Shiga | 2-6,4-6 |
| ITF Vietnam F1 | 2018/05/01 03:00 | Rhett Purcell v Takashi Saito | 6-7,1-6 |
| ITF Japan F5 | 2018/03/31 00:30 | Takashi Saito v Ken Onoda | 3-6,4-6 |
| ITF Japan F4 | 2018/03/24 02:00 | Masamichi Imamura v Takashi Saito | 6-4,6-4 |
| ITF Japan F3 | 2018/03/19 02:15 | Masaya Kobayashi v Takashi Saito | 6-4,4-6,6-4 |
| ITF Japan F3 | 2018/03/18 01:00 | Soichiro Moritani v Takashi Saito | 6-3,3-6,0-6 |
| ITF Japan F3 | 2018/03/17 04:00 | Kenta Kurita v Takashi Saito | 7-5,3-6,0-6 |
| ITF Japan F2 | 2018/03/13 04:45 | Takashi Saito v Naoki Nakagawa | 4-6,6-3,1-6 |
| ITF Japan F1 | 2018/03/10 02:00 | Takashi Saito v Wishaya Trongcharoenchaikul | 4-6,7-5,4-6 |