Stadium: Court 22 Round: 62 Ground: Clay
| ITF - M15 Monastir | 2021/02/22 14:30 | Colin Sinclair v Daiki Yoshimura | 6-0,6-3 |
| ITF - M15 Monastir | 2021/02/22 09:00 | Daiki Yoshimura v Antonio Massara | 7-6,2-6,14-12 |
| ITF - M15 Monastir | 2021/02/21 11:00 | Daiki Yoshimura v Jason Janis | 6-0,6-2 |
| ITF - M15 Monastir | 2021/02/15 09:00 | Yanais Laurent v Daiki Yoshimura | 6-0,6-2 |
| ITF - M15 Monastir | 2021/02/14 10:00 | Rayen Zribi v Daiki Yoshimura | 2-6,2-6 |
| ITF - M15 Monastir | 2021/02/07 12:30 | Ryota Tanuma v Daiki Yoshimura | 6-4,6-3 |
| ITF - M15 Monastir | 2021/01/31 08:30 | Raphael Collignon v Daiki Yoshimura | 6-4,6-3 |
| ITF - M15 Monastir | 2021/01/10 10:00 | Joshua D Karpenschif v Daiki Yoshimura | 6-2,4-6,10-6 |
| ITF - M15 Sharm-el-Sheikh | 2021/02/28 17:00 | Alessandro Pecci v Keisuke Saitoh | 6-4,7-6 |
| ITF - M15 Sharm-el-Sheikh | 2021/02/21 07:00 | Samuel Vincent Ruggeri v Keisuke Saitoh | 6-0,6-1 |
| ITF - M15 Sharm-el-Sheikh | 2021/02/18 07:30 | Keisuke Saitoh v Yu Hsiou Hsu | 1-6,1-6 |
| ITF - M15 Sharm-el-Sheikh | 2021/02/17 14:40 | Keisuke Saitoh v Sidharth Rawat | 7-6,6-3 |
| ITF - M15 Sharm-el-Sheikh | 2021/02/16 09:25 | Daisuke Sumizawa v Keisuke Saitoh | 2-6,4-6 |
| ITF - M15 Sharm-el-Sheikh | 2021/02/15 11:30 | Keisuke Saitoh v Chien Hsun Lo | 6-4,6-4 |
| ITF - M15 Sharm-el-Sheikh | 2021/02/14 14:30 | Elgin Khoeblal v Keisuke Saitoh | 0-6,2-6 |
| ITF - M15 Sharm-el-Sheikh | 2021/02/11 07:30 | Keisuke Saitoh v Nicolas Moreno De Alboran | 4-6,4-6 |