Stadium: Pista 4 Round: 25 Ground: Clay
| 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 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 - M15 Platja d'Aro | 2021/10/15 12:10 | Alexis Musialek v Carlos Sanchez Jover | 3-6,1-6 |
| ITF - M15 Platja d'Aro | 2021/10/14 09:00 | Lorenzo Joaquin Rodriguez v Alexis Musialek | 2-6,5-7 |
| ITF - M15 Platja d'Aro | 2021/10/13 08:30 | Matvey Minin v Alexis Musialek | 2-6,2-6 |
| ITF - M15 Platja d'Aro | 2021/10/06 08:25 | Guy Den Heijer v Alexis Musialek | 5-7,6-4,6-1 |
| ITF - M15 Ulcinj | 2021/09/24 09:00 | Samuel Vincent Ruggeri v Alexis Musialek | 7-6,6-1 |
| ITF - M15 Ulcinj | 2021/09/23 09:30 | Matija Samardzic v Alexis Musialek | 1-6,0-6 |
| ITF - M15 Ulcinj | 2021/09/21 09:55 | Gabriele Piraino v Alexis Musialek | 3-6,7-5,5-7 |
| ITF - M15 Ulcinj | 2021/09/16 08:00 | Samuel Vincent Ruggeri v Alexis Musialek | 7-6,6-1 |