Stadion: Court 3 Round: 25 Ground: Clay
| ITF - M25 - Prostejov | 2021/08/21 07:50 | Facundo Diaz Acosta v Nikolas Sanchez Izquierdo | 4-6,6-1,4-6 |
| ITF - M25 - Eupen | 2021/09/12 13:00 | Matteo Arnaldi v Facundo Diaz Acosta | 6-7,2-6 |
| ITF - M25 - Eupen | 2021/09/11 13:35 | Maxime Pauwels v Facundo Diaz Acosta | 4-6,4-6 |
| ITF - M25 - Eupen | 2021/09/10 10:55 | Colin Sinclair v Facundo Diaz Acosta | 4-6,5-7 |
| ITF - M25 - Eupen | 2021/09/09 07:30 | Tristan Schoolkate v Facundo Diaz Acosta | 1-6,7-6,2-6 |
| ITF - M25 - Eupen | 2021/09/07 11:00 | Benjamin Dhoe v Facundo Diaz Acosta | 0-6,2-6 |
| ITF - M25 - Ricany | 2021/09/03 08:30 | Robin Stanek v Facundo Diaz Acosta | 6-1,6-3 |
| ITF - M25 - Ricany | 2021/09/02 09:45 | Antonin Bolardt v Facundo Diaz Acosta | 2-6,3-6 |
| ITF - M25 - Ricany | 2021/09/01 11:40 | Filip Bergevi v Facundo Diaz Acosta | 3-6,4-6 |
| ITF - M25 - Madrid | 2021/09/14 09:05 | Nikolas Sanchez Izquierdo v Constantinos Koshis | 6-2,6-2 |
| ITF - M25 - Madrid | 2021/09/13 09:00 | Nikolas Sanchez Izquierdo v Vojtech Vlkovsky | 6-4,6-4 |
| Challenger - Sevilla | 2021/09/06 11:00 | Nikolas Sanchez Izquierdo v Tomas Barrios Vera | 6-4,2-6,5-7 |
| Challenger - Prag | 2021/08/24 08:30 | Nikolas Sanchez Izquierdo v Franco Agamenone | 3-6,3-6 |
| ITF - M25 - Prostejov | 2021/08/21 07:50 | Facundo Diaz Acosta v Nikolas Sanchez Izquierdo | 4-6,6-1,4-6 |
| ITF - M25 - Prostejov | 2021/08/20 08:00 | Nikolas Sanchez Izquierdo v Alex Rybakov | 6-3,6-2 |
| ITF - M25 - Prostejov | 2021/08/19 10:10 | Zsombor Piros v Nikolas Sanchez Izquierdo | 6-4,6-7,2-6 |
| ITF - M25 - Prostejov | 2021/08/18 08:00 | Martin Krumich v Nikolas Sanchez Izquierdo | 0-6,2-6 |