Stadium: Court 5 Round: 25 Ground: Clay
| ITF M15 - Cairo | 2021/08/03 07:30 | Keisuke Saitoh v Alessandro Ragazzi | 6-4,1-6,11-9 |
| ITF M15 - Cairo | 2021/07/29 08:00 | Juan Bautista Torres v Keisuke Saitoh | 6-1,6-1 |
| ITF M15 - Cairo | 2021/07/28 10:00 | Stefano Battaglino v Keisuke Saitoh | 3-6,4-6 |
| ITF M15 - Cairo | 2021/07/27 08:00 | Keisuke Saitoh v Lautaro Agustin Falabella | 6-2,7-6 |
| ITF M15 - Cairo | 2021/07/26 09:00 | Keisuke Saitoh v Marco De Rosa | 7-6,6-0 |
| ITF M15 - Cairo | 2021/07/25 11:00 | Keisuke Saitoh v Ali Habib | 6-3,3-6,10-5 |
| ITF M15 - Antalya | 2021/05/12 06:45 | Orlando Luz v Keisuke Saitoh | 3-6,6-3,6-1 |
| ITF M15 - Antalya | 2021/05/11 07:00 | Thomas Deschamps v Keisuke Saitoh | 2-6,5-7 |
| ITF M15 - Cairo | 2021/07/28 08:00 | Alejo Lorenzo Lingua Lavallen v Marlon Vankan | 6-3,6-0 |
| ITF M15 - Cairo | 2021/07/27 08:00 | Marlon Vankan v Menelaos Efstathiou | 6-2,2-6,11-9 |
| ITF M15 - Cairo | 2021/07/26 09:00 | Marlon Vankan v Tomohiro Masabayashi | 6-4,6-2 |
| ITF M15 - Cairo | 2021/07/25 11:00 | Marlon Vankan v Tommaso Vescovi | 6-1,6-2 |
| ITF M15 - Esch/Alzette | 2021/07/21 11:50 | Marlon Vankan v Mick Veldheer | 3-6,6-0,6-7 |
| ITF M15 - Esch/Alzette | 2021/07/20 15:45 | Marlon Vankan v Alex Knaff | 6-4,6-4 |
| ITF M15 - Esch/Alzette | 2021/07/19 08:55 | Marlon Vankan v Adrian Oetzbach | 6-3,6-7,10-6 |
| ITF M15 - Esch/Alzette | 2021/07/18 10:20 | Marlon Vankan v Christophe Tholl | 6-4,6-1 |