Stadium: Court 9 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Sintra | 2021/09/13 15:05 | Diego F Flores v Jaime Faria | 6-3,6-2 |
| ITF M25 Sintra | 2021/09/07 08:30 | Diego F Flores v Daniel Little | 6-4,0-6,6-10 |
| ITF M25 Sintra | 2021/09/06 10:05 | Diego F Flores v Alan Gleeson | 6-3,6-3 |
| ITF M15 Bratislava | 2021/08/24 10:00 | Vasil Kirkov v Diego F Flores | 6-3,6-3 |
| ITF M15 Bratislava | 2021/08/19 08:00 | Diego F Flores v Mate Valkusz | 2-6,6-2,5-7 |
| ITF M15 Bratislava | 2021/08/18 10:05 | Diego F Flores v Lukas Pokorny | 6-4,2-6,6-4 |
| ITF M15 Xàtiva | 2021/08/04 07:00 | Diego F Flores v Inaki Montes-De La Torre | 3-6,2-6 |
| ITF M25 Idanha-A-Nova | 2021/07/19 13:00 | Diego F Flores v Mario G Fernandez | 6-2,3-6,5-10 |
| ITF M25 Sintra | 2021/09/13 11:55 | Hans Albert Schubert v Nicolas Affolter | 7-6,6-2 |
| ITF M25 Sintra | 2021/09/06 08:30 | Hans Albert Schubert v Jesse Flores | 4-6,2-6 |
| 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 Torelló | 2020/12/06 10:00 | Hans Albert Schubert v Luigi Castelletti | 4-6,3-6 |
| ITF M15 Kairo | 2020/11/22 12:00 | Adham Gaber v Hans Albert Schubert | 6-1,7-5 |