Stadium: Court 10 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Gandia | 2021/07/18 07:00 | Denis Klok v Hans Albert Schubert | 6-3,6-2 |
| ITF M25 Vic | 2021/05/16 08:00 | Hans Albert Schubert v Abedallah Shelbayh | 1-6,5-7 |
| ITF M15 Sharm El Sheikh | 2021/04/04 12:30 | Daniel Cox v Hans Albert Schubert | 6-1,6-2 |
| ITF M15 Sharm El Sheikh | 2021/03/28 09:30 | Hans Albert Schubert v Yaron Guberman | 1-6,5-7 |
| ITF M15 Torello | 2020/12/06 10:00 | Hans Albert Schubert v Luigi Castelletti | 4-6,3-6 |
| ITF M15 Cairo | 2020/11/22 12:00 | Adham Gaber v Hans Albert Schubert | 6-1,7-5 |
| ITF M15 Sharm El Sheikh | 2020/11/16 12:00 | Hans Albert Schubert v Leonid Sheyngezikht | 0-6,3-6 |
| ITF M15 Sharm El Sheikh | 2020/11/08 10:00 | Volodymyr Uzhylovskyi v Hans Albert Schubert | 6-3,6-1 |
| ITF M25 Sierre | 2021/08/31 10:50 | Emiliano Maggioli v Jesse Flores | 6-1,6-0 |
| ITF M25 Decatur | 2021/08/03 15:00 | Eliot Spizzirri v Jesse Flores | 4-6,6-2,10-3 |
| ITF M25 Decatur | 2021/08/02 15:00 | Jesse Flores v Kento Takeuchi | 6-2,6-4 |
| Davis Cup | 2021/07/02 17:05 | Jesse Flores v Tariq Simons | 6-2,6-1 |
| Davis Cup | 2021/07/01 15:35 | Jesse Flores v Alejandro Obando | 6-4,4-6,6-0 |
| Davis Cup | 2021/06/30 16:30 | Jesse Flores v Nkrumah Patrick | 6-1,6-1 |
| ITF M25 Santo Domingo | 2021/06/09 13:00 | Calvin Hemery v Jesse Flores | 7-6,7-6 |
| ITF M25 Santo Domingo | 2021/06/01 12:50 | Luis Patino v Jesse Flores | 7-5,6-3 |