Stadium: Court 4 Round: 54 Ground: Clay
| ITF M15 Xativa | 2021/08/01 10:00 | Echevarri, Jesus v Vrzesinski, Robertas | 6-7,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/06/22 08:00 | Miranda Cisneros, Jose Joaquin v Echevarri, Jesus | 6-3,5-1 |
| UTR Pro Tennis Series Barcelona | 2021/06/21 12:30 | Mas de Ugarte, Jordi v Echevarri, Jesus | 6-3,5-0 |
| UTR Pro Tennis Series Barcelona | 2021/06/20 08:30 | Pla Malfeito, Jaume v Echevarri, Jesus | 6-1,6-0 |
| ITF M15 Marbella | 2021/05/23 07:00 | Echevarri, Jesus v Miles Jones | 1-6,3-6 |
| ITF M25 Prague | 2021/05/09 08:30 | Echevarri, Jesus v Stanek, Robin | 2-6,2-6 |
| ITF M25 La Nucia | 2021/03/15 08:30 | Echevarri, Jesus v Leopold Zima | 4-6,2-6 |
| ITF M25 La Nucia | 2021/03/14 13:00 | Martinez Arjona, Samuel v Echevarri, Jesus | 6-7,6-2,7-10 |
| ITF M15 Xativa | 2021/08/02 07:00 | Vicente O Moratalla v Mario Mansilla Diez | 6-7,7-6,11-9 |
| ITF M15 Xativa | 2021/08/01 07:00 | Thijmen Loof v Mario Mansilla Diez | 2-6,2-6 |
| ITF M25 Denia | 2021/07/26 09:30 | Mario Mansilla Diez v Emilien Voisin | 6-4,2-6,6-10 |
| ITF M25 Gandia | 2021/07/21 07:30 | Mario Mansilla Diez v Gomez, Alejandro | 7-5,1-6,6-7 |
| ITF M25 Gandia | 2021/07/20 10:15 | Mario Mansilla Diez v Oumaouche, Rayane | 6-0,7-5 |
| ITF M25 Gandia | 2021/07/19 10:00 | Emilien Voisin v Mario Mansilla Diez | 5-7,1-6 |
| ITF M25 Bakio | 2021/06/27 16:00 | Diaz Freire, Gabriel v Mario Mansilla Diez | 6-4,3-6,10-6 |
| UTR Pro Tennis Series Barcelona | 2021/06/26 09:30 | Rishab Agarwal v Mario Mansilla Diez | 6-2,5-4 |