Stadium: Court 4 Round: 25 Ground: Clay
| ITF M15 Girona | 2021/10/21 11:20 | Alexander Weis v Diego A B Sanchez | 6-4,6-4 |
| ITF M15 Girona | 2021/10/19 09:00 | Diego A B Sanchez v Alexis Musialek | 6-1,6-3 |
| Challenger Alicante | 2021/10/11 09:00 | Santiago Rodriguez Taverna v Diego A B Sanchez | 6-4,6-7,7-5 |
| Challenger Alicante | 2021/10/10 11:00 | Diego A B Sanchez v Wojciech Marek | 6-4,6-3 |
| ITF M15 Cairo | 2021/09/22 09:20 | Diego A B Sanchez v Edoardo Lavagno | 1-6,3-6 |
| ITF M15 Cairo | 2021/09/15 10:05 | Diego A B Sanchez v Stefano Battaglino | 1-6,4-6 |
| ITF M25 Oviedo | 2021/09/01 12:40 | Oscar Jose Gutierrez v Diego A B Sanchez | 6-3,7-5 |
| ITF M25 Oviedo | 2021/08/31 06:55 | Miguel Fernando Pereira v Diego A B Sanchez | 1-6,7-6,3-6 |
| ITF M25 Madrid | 2021/09/12 13:00 | Asier P D Zulueta v Ivan Bas Mengual | 0-6,4-6 |
| ITF M25 Denia | 2021/07/26 14:30 | Asier P D Zulueta v Inaki Montes-De La Torre | 1-6,0-6 |
| ITF M15 Marbella | 2021/05/24 09:00 | Asier P D Zulueta v Pol Amoros Ramos | 0-6,2-6 |
| ITF M15 Marbella | 2021/05/23 09:30 | Asier P D Zulueta v Lawrence Bataljin | 2-6,7-6,10-8 |
| ITF M15 Getafe Madrid | 2020/11/29 16:00 | Asier P D Zulueta v Bruno P Navarro | 1-6,2-6 |