Stadium: Centre Court Round: 45 Ground: Hardcourt outdoor
| 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 F6 | 2018/10/11 03:00 | Takashi Saito v Matic Spec | 4-6,7-6,6-7 |
| ITF Thailand F6 | 2018/10/09 05:00 | Takashi Saito v David Agung Susanto | 6-2,6-1 |
| ITF Thailand F5 | 2018/10/04 04:30 | Takashi Saito v Kelsey Stevenson | 4-6,6-7 |
| Challenger Traralgon | 2018/10/21 03:40 | William Ma v Brydan Klein | 4-6,3-6 |
| Challenger Traralgon | 2018/10/20 23:00 | Jack Clements v William Ma | 5-7,3-6 |
| ITF Australia F8 | 2018/10/08 02:30 | Socrates Leon Tsoronis v William Ma | 6-3,6-2 |
| ITF Australia F8 | 2018/10/07 02:00 | Matthew Stubbings v William Ma | 4-6,4-6 |
| ITF Australia F8 | 2018/10/06 02:00 | Louis Clark v William Ma | 2-6,3-6 |
| ITF Australia F7 | 2018/09/29 01:30 | Connor Johnson v William Ma | 6-3,7-6 |
| ITF Australia F6 | 2018/09/24 03:35 | William Ma v Corey Gaal | 7-5,2-6,2-6 |
| ITF Australia F6 | 2018/09/23 00:30 | William Ma v Matthew Mendez | 6-2,6-0 |