Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/09/19 10:30 | Paras Dahiya v Bastian A U Santander | 6-3,6-1 |
| ITF M15 Monastir | 2021/09/13 09:00 | Gabriel Decamps v Bastian A U Santander | 6-1,6-0 |
| ITF M15 Monastir | 2021/09/05 09:30 | Evgeny Philippov v Bastian A U Santander | 6-2,6-0 |
| ITF M15 Monastir | 2021/08/30 08:00 | Rishabdev Raman v Bastian A U Santander | 6-3,7-5 |
| ITF M15 Monastir | 2021/08/23 08:00 | Keisuke Saitoh v Bastian A U Santander | 6-2,6-0 |
| ITF M15 Monastir | 2020/02/09 08:00 | Alvaro G 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 | 2021/09/26 10:30 | Martin Katz v Jiaqi Duan | 6-4,6-3 |
| ITF M25 Eupen | 2021/09/08 09:50 | Buvaysar Gadamauri v Martin Katz | 6-3,6-3 |
| ITF M15 Huy | 2021/08/24 15:35 | Martin Katz v Deney Wassermann | 4-6,1-6 |
| ITF M25 Koksijde | 2021/08/18 11:05 | Martin Katz v Aidan Mchugh | 2-6,6-7 |