Stadium: Court 8 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/08/22 07:30 | Keisuke Saitoh v Bryan Aguiar Kuntz | 6-4,6-4 |
| ITF M15 Monastir | 2021/08/16 08:30 | Keisuke Saitoh v Shohei Chikami | 4-6,1-6 |
| ITF M15 Monastir | 2021/08/15 11:00 | Keisuke Saitoh v Alec Beckley | 6-3,4-6,10-4 |
| ITF M15 Monastir | 2021/08/11 18:35 | Keisuke Saitoh v Dane Sweeny | 1-6,4-6 |
| ITF M15 Monastir | 2021/08/10 07:30 | Masamichi Imamura v Keisuke Saitoh | 6-7,2-6 |
| ITF M15 Monastir | 2021/08/09 07:30 | Babji Siva Atturu v Keisuke Saitoh | 1-6,0-6 |
| ITF M15 Cairo | 2021/08/05 08:00 | Juan Bautista Torres v Keisuke Saitoh | 6-0,6-1 |
| ITF M15 Cairo | 2021/08/04 13:30 | Keisuke Saitoh v Marlon Vankan | 6-4,7-5 |
| ITF M15 Monastir | 2020/02/09 08:00 | Alvaro Guillen Meza v Bastian A U Santander | 6-4,6-0 |
| ITF M15 Monastir | 2020/02/02 10:00 | Sam Taylor v Bastian A U Santander | 6-2,6-3 |
| ITF M15 Monastir | 2020/01/26 10:00 | Bastian A U Santander v Alessandro Procopio | 2-6,2-6 |
| ITF M15 Monastir | 2020/01/19 08:00 | Mihailo Popovic v Bastian A U Santander | 6-2,6-2 |
| ITF M15 Antalya | 2019/04/29 06:45 | Bastian A U Santander v Marius Ruzgas | 6-7,7-6,5-10 |
| ITF M15 Antalya | 2019/03/25 07:00 | Yan Sabanin v Bastian A U Santander | 6-2,6-1 |
| ITF Turkey F21 Qual | 2018/05/28 07:30 | Joel Cannell v Bastian A U Santander | 6-0,6-1 |
| ITF Turkey F20 Qual | 2018/05/20 07:30 | Greg Polmans v Bastian A U Santander | 6-4,7-5 |