Stadium: Court 13 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Kuching | 2022/08/04 04:30 | Tsung-Hao Huang v Keisuke Saitoh | 6-1,6-0 |
| ITF M25 Brisbane | 2023/11/22 23:50 | Moerani Bouzige v Keisuke Saitoh | 6-4,2-6,7-5 |
| ITF M25 Brisbane | 2023/11/21 05:25 | Keisuke Saitoh v Thomas Fancutt | 4-6,7-5,6-4 |
| ITF M25 Takasaki | 2023/09/20 01:00 | Leo Vithoontien v Keisuke Saitoh | 6-4,6-3 |
| ITF M25 Sapporo | 2023/09/12 03:45 | Keisuke Saitoh v Tomohiro Masabayashi | 5-7,3-6 |
| ITF M25 Sapporo | 2023/09/06 01:00 | Keisuke Saitoh v Tomohiro Masabayashi | 4-6,6-3,1-6 |
| ITF M25 Hong Kong | 2023/08/31 02:00 | Naoki Nakagawa v Keisuke Saitoh | 6-4,6-7,6-1 |
| ITF M25 Hong Kong | 2023/08/30 02:00 | Keisuke Saitoh v Ji Hoon Son | 6-3,7-6 |
| ITF M15 Caloundra | 2023/08/04 00:55 | Isaac Becroft v Keisuke Saitoh | 6-3,6-4 |
| ITF M25 Hua Hin | 2023/11/18 03:00 | Tsung-Hao Huang v Evgeny Donskoy | 4-6,1-6 |
| ITF M25 Hua Hin | 2023/11/17 03:00 | Tsung-Hao Huang v Seonyong Han | 6-1,6-4 |
| ITF M25 Hua Hin | 2023/11/16 03:00 | Tsung-Hao Huang v Congsup Congcar | 6-3,6-2 |
| ITF M25 Hua Hin | 2023/11/14 04:25 | Tsung-Hao Huang v Natthasith Kunsuwan | 3-6,6-4,6-1 |
| ITF M15 Hua Hin | 2023/11/07 03:00 | Linang Xiao v Tsung-Hao Huang | 6-0,6-0 |
| Challenger Shenzhen | 2023/10/20 03:00 | Tsung-Hao Huang v Coleman Wong | 6-4,5-7,3-6 |
| Challenger Shenzhen | 2023/10/19 07:15 | Egor Gerasimov v Tsung-Hao Huang | 3-6,2-6 |
| Challenger Shenzhen | 2023/10/17 06:00 | Benjamin Lock v Tsung-Hao Huang | 5-7,4-6 |