| ITF M15 Casablanca | 09/07 13:55 | 25 | Mario Mansilla Diez v Federico Campana | 7-5,6-2 | |
| ITF M25 Oviedo | 08/30 11:05 | 25 | Mario M Diez v Diego A B Sanchez | 2-6,4-6 | |
| ITF M25 Santander | 08/24 12:15 | 26 | Max Alcala Gurri v Mario Mansilla Diez | 6-1,6-4 | |
| ITF M25 Santander | 08/23 13:40 | 25 | Mario Mansilla Diez v Alexandros Skorilas | 6-1,6-7,7-6 | |
| ITF M25 Santander | 08/23 08:00 | 25 | Mario Mansilla Diez v Joao Lucas Reis da Silva | Cancelled | |
| ITF M15 Xativa | 08/03 07:00 | 25 | Mario Mansilla Diez v Diego A B Sanchez | 6-2,6-7,2-6 | |
| ITF M25 Denia | 07/26 14:00 | 25 | Calvin Hemery v Mario Mansilla Diez | 6-0,6-2 | |
| ITF M25 Gandia | 07/20 12:55 | 25 | Mario Mansilla Diez v Lucas Bouquet | 3-6,2-6 | |
| ITF M25 Getxo | 07/07 17:55 | 26 | Mario M Diez v Giovanni M Perricard | 3-6,4-6 | |
| ITF M25 Getxo | 07/06 08:00 | 25 | Mario M Diez v Alex Knaff | 6-4,6-3 | |
| ITF M25 Getxo | 07/04 13:55 | 54 | Mario M Diez v Giacomo Revelli | 6-2,6-1 | |
| ITF M25 Getxo | 07/03 13:30 | 54 | Mario Mansilla Diez v Mikel Martinez | 6-2,6-1 | |
| ITF M25 Bakio | 06/28 08:35 | 25 | Mario Mansilla Diez v Garrett Johns | 4-6,1-6 | |
| ITF M25 Mungia | 06/21 10:30 | 25 | Simon Carr v Mario Mansilla Diez | 4-6,6-4,6-0 | |
| ITF M25 Mungia | 06/19 10:30 | 54 | Svyatoslav Gulin v Mario Mansilla Diez | 6-2,6-1 | |
| ITF M25 Martos | 06/14 14:30 | 25 | Mario Mansilla Diez v Pedro Rodenas | 3-6,1-6 | |
| ITF M15 Cordoba | 06/08 09:55 | 25 | Mario Mansilla Diez v Ignacio Buse | 4-6,5-7 | |
| ITF M25 La Nucia | 06/03 08:00 | 26 | Mario Mansilla Diez v Oriol Roca Batalla | Cancelled | |
| ITF M25 La Nucia | 06/01 12:15 | 25 | Mario Mansilla Diez v Xavi Matas Ortega | 1-6,0-6 | |
| ITF M25 Vic | 05/18 11:30 | 25 | Martin Cuevas v Mario Mansilla Diez | 7-6,6-2 | |
| ITF M25 Vic | 05/16 08:00 | 62 | Julio Cesar Porras v Mario Mansilla Diez | 6-2,6-3 | |
| ITF M15 Valldoreix | 05/12 08:00 | 26 | Mario Mansilla Diez v Imanol L Morillo | 6-7,1-6 | |
| ITF M15 Valldoreix | 05/11 09:50 | 25 | Mario Mansilla Diez v Richard Zusman | 6-0,6-1 | |
| ITF M15 Valldoreix | 05/09 09:00 | 62 | Noah Lopez v Mario Mansilla Diez | 7-5,6-0 | |
| ITF M15 Valldoreix | 05/08 12:00 | 62 | Marcelo Marino Hidalgo v Mario Mansilla Diez | 1-6,0-6 | |
| ITF M15 Antalya | 04/27 11:05 | 25 | Timo Stodder v Mario Mansilla Diez | 6-2,6-1 | |
| ITF M15 Antalya | 04/26 07:00 | 62 | Mario Mansilla Diez v Jiri Jenicek | 6-3,7-6 | |
| ITF M15 Antalya | 04/25 11:40 | 62 | Mario Mansilla Diez v Julian Cundom | 7-6,4-6,10-3 | |
| ITF M15 Antalya | 04/17 07:00 | 62 | Mario Mansilla Diez v Oleksandr Bielinskyi | 6-4,3-6,12-14 | |
| ITF M25 Reus | 04/07 08:30 | 26 | Mario Mansilla Diez v Inaki Cabrera Bello | 4-6,7-6,6-7 |