Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF Vietnam F3 | 2018/05/16 06:00 | Takashi Saito v Min-Kyu Song | 6-1,6-0 |
| ITF M25 Hong Kong | 2019/01/03 02:00 | Takashi Saito v Julian Lenz | 3-6,1-6 |
| ITF M25 Hong Kong | 2019/01/02 02:00 | Benjamin Hassan v Takashi Saito | 1-6,4-6 |
| ITF M25 Hong Kong | 2019/01/01 02:00 | Takashi Saito v William Ma | 6-0,6-3 |
| ITF Hong Kong F3 | 2018/12/25 05:20 | Runhao Hua v Takashi Saito | 6-4,3-6,6-3 |
| Challenger Kobe | 2018/11/10 07:20 | Seita Watanabe v Takashi Saito | 4-6,7-5,7-6 |
| ITF Thailand F8 | 2018/11/08 02:00 | Antoine Bellier v Takashi Saito | 6-1,6-1 |
| ITF Thailand F8 | 2018/11/07 02:00 | Jirat Navasirisomboon v Takashi Saito | 0-6,0-6 |
| ITF Thailand F8 | 2018/11/05 08:55 | Pruchya Isarow v Takashi Saito | 3-6,4-6 |
| ITF Thailand F8 | 2018/11/07 02:00 | Min-Kyu Song v Kuan-Yi Lee | 3-6,3-6 |
| ITF Thailand F8 | 2018/11/06 04:10 | Mikhail Fufygin v Min-Kyu Song | 4-6,2-6 |
| ITF Thailand F7 | 2018/11/03 02:00 | Konstantin Kravchuk v Min-Kyu Song | 6-3,6-3 |
| ITF Thailand F7 | 2018/11/02 05:30 | Min-Kyu Song v Seong Chan Hong | 6-2,6-3 |
| ITF Thailand F7 | 2018/11/01 02:00 | Jae Hwan Kim v Min-Kyu Song | 2-6,1-6 |
| ITF Thailand F7 | 2018/10/31 02:00 | Matic Spec v Min-Kyu Song | 4-6,4-6 |
| ITF Thailand F7 | 2018/10/30 06:40 | Min-Kyu Song v Igor Smilansky | 6-4,6-4 |
| ITF Korea F6 | 2018/09/02 03:30 | Sanhui Shin v Min-Kyu Song | 6-4,6-7,2-6 |