Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Marbella | 2021/05/25 09:00 | Max Alcala Gurri v Mario Mansilla Diez | 6-2,6-4 |
| ITF M15 Girona | 2021/10/21 08:00 | Mario Mansilla Diez v Pol Toledo Bague | 3-6,2-6 |
| ITF M15 Girona | 2021/10/20 11:20 | Maxime Mora v Mario Mansilla Diez | 2-6,7-5,5-7 |
| ITF M15 Girona | 2021/10/19 08:00 | Ignasi De Rueda De Genover v Mario Mansilla Diez | 0-6,4-6 |
| ITF M15 Girona | 2021/10/18 08:00 | Mario Mansilla Diez v Noah Lopez | 6-2,6-0 |
| ITF M15 Girona | 2021/10/17 10:30 | Kirill Mishkin v Mario Mansilla Diez | 1-6,0-6 |
| ITF M15 Platja D'Aro | 2021/10/10 11:00 | Max Houkes v Mario Mansilla Diez | 6-3,6-4 |
| ITF M15 Platja D'Aro | 2021/10/05 08:30 | Jose Fco. Vidal Azorin v Mario Mansilla Diez | 6-1,6-4 |
| ITF M15 Melilla | 2021/09/24 16:30 | Alex M Pujolras v Mario Mansilla Diez | 6-0,6-3 |
| ITF M15 Girona | 2021/10/21 10:20 | Max Alcala Gurri v Carlos Sanchez Jover | 6-3,3-6,2-6 |
| ITF M15 Girona | 2021/10/20 08:00 | Lilian Marmousez v Max Alcala Gurri | 2-6,3-6 |
| ITF M15 Platja D'Aro | 2021/10/15 10:00 | Miguel Damas v Max Alcala Gurri | 4-6,6-2,7-6 |
| ITF M15 Platja D'Aro | 2021/10/14 09:00 | Max Houkes v Max Alcala Gurri | 6-7,7-5,4-6 |
| ITF M15 Platja D'Aro | 2021/10/13 08:30 | Max Alcala Gurri v Federico Arnaboldi | 6-3,5-7,6-2 |
| ITF M15 Platja D'Aro | 2021/10/05 08:00 | Florent Bax v Max Alcala Gurri | 6-4,1-6,10-4 |
| ITF M15 Platja D'Aro | 2021/10/04 11:00 | Pedro Iamachkine v Max Alcala Gurri | 4-6,2-6 |
| ITF M15 Platja D'Aro | 2021/10/03 08:00 | Michele Vianello v Max Alcala Gurri | 0-6,1-6 |