Stadium: Court 7 Round: 62 Ground: Clay
| ITF M15 Benicarlo | 2021/11/07 08:30 | Mikel Aranzabal v Peetu Pohjola | 7-6,3-6,10-8 |
| ITF M25 Madrid | 2021/10/25 10:30 | Ilya Rudiukov v Mikel Aranzabal | 6-0,1-6,10-6 |
| ITF M15 Xativa | 2021/08/02 07:00 | Alejandro Garcia v Mikel Aranzabal | 6-3,6-2 |
| ITF M25 Denia | 2021/07/25 14:30 | Pawel Juszczak v Mikel Aranzabal | 6-0,6-0 |
| ITF M25 Reus | 2021/04/11 07:00 | Imanol L Morillo v Mikel Aranzabal | 6-1,6-1 |
| ITF M25 La Nucia | 2021/03/15 09:30 | Mikel Aranzabal v Francisco Andreu Garcia | 6-2,5-7,2-10 |
| ITF M25 La Nucia | 2021/03/14 12:00 | Henrik Traskin v Mikel Aranzabal | 6-4,6-7,13-15 |
| ITF M15 La Nucia | 2021/03/10 09:30 | Georgii Kravchenko v Mikel Aranzabal | 6-2,6-2 |
| ITF M15 Benicarlo | 2021/11/07 08:30 | Samuel M Arjona v Mario Mansilla Diez | 4-6,4-6 |
| ITF M15 Torello | 2021/11/05 10:00 | Lilian Marmousez v Mario Mansilla Diez | 6-4,6-4 |
| ITF M15 Torello | 2021/11/04 13:10 | Vilius Gaubas v Mario Mansilla Diez | 2-6,3-6 |
| ITF M15 Torello | 2021/11/02 15:35 | Mario Mansilla Diez v Alessandro Ingarao | 6-2,6-3 |
| ITF M15 Madrid | 2021/10/29 07:30 | Mario Mansilla Diez v Coleman Wong | 5-7,1-6 |
| ITF M15 Madrid | 2021/10/28 09:30 | Alejandro Moro Canas v Mario Mansilla Diez | 5-7,6-3,6-7 |
| ITF M15 Madrid | 2021/10/27 10:30 | Mario Mansilla Diez v Max Alcala Gurri | 6-3,6-7,6-1 |
| ITF M15 Girona | 2021/10/21 08:00 | Mario Mansilla Diez v Pol Toledo Bague | 3-6,2-6 |