Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Bendigo | 2022/03/03 01:30 | Yusuke Takahashi v Keisuke Saitoh | 6-2,6-2 |
| ITF M15 Kashiwa | 2019/04/04 01:00 | Yusuke Takahashi v Keisuke Saitoh | 6-2,6-1 |
| ITF M25 Monastir | 2023/02/20 08:30 | Keisuke Saitoh v Ioannis Xilas | 3-6,3-6 |
| ITF M25 Monastir | 2023/02/13 11:30 | Keisuke Saitoh v Mayeul Darras | 6-2,6-7,9-11 |
| ITF M25 Monastir | 2023/02/12 08:30 | Keisuke Saitoh v Vitali Shvets | 6-3,6-1 |
| ITF M25 Monastir | 2023/02/07 12:00 | Arthur Bouquier v Keisuke Saitoh | 6-4,6-4 |
| ITF M25 Monastir | 2023/02/02 11:30 | Keisuke Saitoh v Mathias Bourgue | 4-6,6-4,2-6 |
| ITF M25 Monastir | 2023/02/01 11:35 | Keisuke Saitoh v Louis Tessa | 6-2,4-6,6-3 |
| ITF M15 Jakarta | 2023/01/28 08:30 | Nicholas David Ionel v Keisuke Saitoh | 6-1,7-6 |
| ITF M15 Jakarta | 2023/01/27 02:00 | Mitsuki Wei Kang Leong v Keisuke Saitoh | 0-6,6-4,1-6 |
| ITF M15 Aktobe | 2023/03/03 06:55 | Yusuke Takahashi v Yan Bondarevskiy | 3-6,6-3,1-6 |
| ITF M15 Aktobe | 2023/03/02 08:50 | Yusuke Takahashi v Grigoriy Lomakin | 7-6,6-1 |
| ITF M15 Aktobe | 2023/02/28 10:05 | Yusuke Takahashi v Aleksandr Braynin | 7-5,6-3 |
| ITF M25 Burnie | 2023/02/07 23:00 | Yusuke Takahashi v Philip Sekulic | 3-6,2-6 |
| Challenger Burnie | 2023/01/31 00:30 | Yusuke Takahashi v Rinky Hijikata | 3-6,2-6 |
| Challenger Burnie | 2023/01/29 23:00 | Yusuke Takahashi v Issei Okamura | 6-4,6-2 |
| Challenger Burnie | 2023/01/29 00:00 | Yusuke Takahashi v Matthew Woerndle | 6-2,6-1 |
| Challenger Yokkaichi | 2022/11/20 01:00 | Rimpei Kawakami v Yusuke Takahashi | 2-6,6-1,6-0 |