Stadium: Court 4 Round: 25 Ground: Clay
| ITF M25 Oviedo | 2021/08/30 10:05 | Kuzey Cekirge v Miguel Fernando Pereira | 5-7,6-4,8-10 |
| ITF M25 Oviedo | 2021/08/29 12:55 | Diego C. Morales v Miguel Fernando Pereira | 1-6,3-6 |
| ITF M25 Santander | 2021/08/23 13:30 | Julio Cesar Porras v Miguel Fernando Pereira | 6-3,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/08/14 08:00 | Andrey Chepelev v Miguel Fernando Pereira | 6-4,4-6,7-5 |
| UTR Pro Tennis Series Barcelona | 2021/08/13 09:30 | Miguel Fernando Pereira v Jay Friend | 2-6,6-3,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/08/11 08:30 | Miguel Fernando Pereira v Jordi Mas De Ugarte | 3-6,6-3,7-6 |
| UTR Pro Tennis Series Barcelona | 2021/08/10 11:30 | Miguel Fernando Pereira v Kuzey Cekirge | 6-3,5-0 |
| UTR Pro Tennis Series Barcelona | 2021/08/09 07:00 | Pablo Carretero v Miguel Fernando Pereira | 6-7,6-1,6-0 |
| ITF M25 Oviedo | 2021/08/30 07:50 | Diego A B Sanchez v Mikel Martinez | 6-3,6-1 |
| ITF M25 Oviedo | 2021/08/29 08:00 | Diego A B Sanchez v Ignacio B Alia | 6-0,6-1 |
| ITF M25 Denia | 2021/07/28 09:55 | Nick Hardt v Diego A B Sanchez | 6-4,6-1 |
| ITF M15 Monastir | 2021/06/20 10:30 | Kody Pearson v Diego A B Sanchez | 6-7,6-1,11-9 |
| ITF M15 Monastir | 2021/06/13 14:00 | Giles Hussey v Diego A B Sanchez | 3-6,6-4,10-8 |
| ITF M25 Vic | 2021/05/17 09:00 | Diego A B Sanchez v Imanol L Morillo | 4-6,4-6 |
| ITF M25 Vic | 2021/05/16 08:00 | Diego A B Sanchez v Rishab Agarwal | 6-3,7-5 |
| ITF M15 Valldoreix | 2021/05/11 08:00 | Diego A B Sanchez v Louis Dussin | 4-6,4-6 |