Stadium: Court 21 Round: 62 Ground: Clay
| ITF M15 Antalya | 2021/04/13 08:15 | Taiyo Yamanaka v Antonio Massara | 2-6,6-4,12-14 |
| ITF M15 Antalya | 2021/04/12 09:00 | Aleksandre Bakshi v Taiyo Yamanaka | 3-6,0-6 |
| ITF M15 Antalya | 2021/04/11 07:00 | Daniel Siniakov v Taiyo Yamanaka | 1-6,2-6 |
| ITF M15 Antalya | 2021/04/05 07:00 | Edward Hubner v Taiyo Yamanaka | 6-7,6-2,10-5 |
| ITF M15 Antalya | 2021/04/04 06:30 | Elmer Moller v Taiyo Yamanaka | 4-6,4-6 |
| ITF M15 Antalya | 2021/04/01 07:30 | Taiyo Yamanaka v Seong Chan Hong | 7-6,6-7,2-6 |
| ITF M15 Antalya | 2021/03/31 11:00 | Aleksander Orlikowski v Taiyo Yamanaka | 3-6,1-6 |
| ITF M15 Antalya | 2021/03/30 07:00 | Taiyo Yamanaka v Federico Bertuccioli | 6-4,6-7,12-10 |
| ITF M15 Antalya | 2021/04/11 07:00 | Daiki Yoshimura v Keisuke Saitoh | 6-2,6-3 |
| 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 |