Estádio: Court 5 Round: 62 Ground: Clay
| ITF - M15 Cairo | 2021/01/25 10:30 | Taisei Ichikawa v Mohamed Hesham | 6-0,6-0 |
| ITF - M15 Cairo | 2021/01/24 09:30 | Taisei Ichikawa v Maik Steiner | 6-4,6-4 |
| ITF - M15 Cairo | 2021/01/17 08:00 | Rimpei Kawakami v Taisei Ichikawa | 2-6,6-2,10-6 |
| ITF - M15 Cairo | 2021/01/11 09:00 | Dhruv Sunish v Taisei Ichikawa | 5-7,6-4,10-5 |
| ITF - M15 Nonthaburi | 2019/11/26 07:20 | Taisei Ichikawa v Ji Sung Nam | 5-7,2-6 |
| Challenger - Kobe | 2019/11/07 02:00 | Yosuke Watanuki v Taisei Ichikawa | 6-2,6-1 |
| Challenger - Kobe | 2019/11/06 04:45 | Taisei Ichikawa v Enrique Lopez-Perez | 5-7,6-2,7-6 |
| Challenger - Kobe | 2019/11/05 02:45 | Timur Khabibulin v Taisei Ichikawa | 0-6,2-6 |
| ITF - M15 Cairo | 2021/01/25 10:30 | Taha Kapadia v Keisuke Saitoh | 2-6,0-6 |
| ITF - M15 Cairo | 2021/01/24 09:30 | Sami Ben Abdennibi v Keisuke Saitoh | 4-6,5-7 |
| ITF - M15 Sharm El Sheikh | 2020/11/09 08:00 | Arjun Kadhe v Keisuke Saitoh | 7-6,6-1 |
| ITF - M15 Sharm El Sheikh | 2020/11/08 07:00 | Keisuke Saitoh v Bekkhan Atlangeriev | 6-0,6-3 |
| ITF - M15 Sharm El Sheikh | 2020/11/05 08:00 | Keisuke Saitoh v David Poljak | 3-6,4-6 |
| ITF - M15 Sharm El Sheikh | 2020/11/04 12:55 | Keisuke Saitoh v Raphael Collignon | 6-3,6-3 |
| ITF - M15 Sharm El Sheikh | 2020/11/03 09:25 | Keisuke Saitoh v Petr Michnev | 7-5,2-6,10-8 |
| ITF - M15 Sharm El Sheikh | 2020/11/02 08:00 | Erik Crepaldi v Keisuke Saitoh | 6-7,0-6 |