Results
| ITF M25 Takasaki | 09/18 01:00 | - | Yusuke Takahashi v Keisuke Saitoh | 7-6,6-0 | |
| ITF M25 Takasaki | 09/17 02:30 | - | Koki Matsuda v Keisuke Saitoh | 3-6,6-4,2-6 | |
| ITF M25 Sapporo | 09/10 02:30 | - | Keisuke Saitoh v Masamichi Imamura | 3-6,3-5 | |
| ITF M25 Sapporo | 09/02 01:30 | - |
Naoki Nakagawa
v
Keisuke Saitoh |
6-4,6-4 | |
| ITF M25 Taipei | 08/28 02:00 | - | Keisuke Saitoh v Soonwoo Kwon | 2-6,0-6 | |
| ITF M25 Taipei | 08/27 04:33 | - | Yong Joon Park v Keisuke Saitoh | 2-6,2-5 | |
| ITF M25 Taipei | 08/19 02:00 | - | Keisuke Saitoh v Masamichi Imamura | 3-6,4-6 | |
| ITF M15 Singapore | 08/12 05:03 | - | Keisuke Saitoh v Chen Dong | 3-6,4-6 | |
| ITF M15 Singapore | 08/09 02:00 | - | Kasidit Samrej v Keisuke Saitoh | 6-3,6-1 | |
| ITF M15 Singapore | 08/08 04:30 | - | Keisuke Saitoh v Ali Habib | 7-5,6-0 | |
| ITF M15 Singapore | 08/07 06:28 | - | Keisuke Saitoh v Ammar Faleh Alhogbani | 6-2,6-3 | |
| ITF M15 Singapore | 08/06 02:00 | - | Keisuke Saitoh v Maximus Z Wong | 6-0,6-0 |
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