Stadium: Pista Central Round: 54 Ground: Hardcourt outdoor
| ITF - M25 Denia | 2019/07/22 08:30 | Gabriel Diaz Freire v Sheil Kotecha | 6-7,2-6 |
| ITF - M25 Getxo | 2019/07/09 11:25 | Boris Arias v Gabriel Diaz Freire | 6-2,3-6,10-6 |
| ITF - M25 Getxo | 2019/07/08 11:00 | Gabriel Diaz Freire v Paolo Dagnino | 3-6,7-6,11-9 |
| ITF - M25 Bakio | 2019/07/01 08:45 | Mikel Aranzabal v Gabriel Diaz Freire | 6-3,6-2 |
| ITF USA F30 | 2018/11/02 19:30 | Mwendwa Mbithi v Gabriel Diaz Freire | 3-6,7-5,6-0 |
| ITF USA F27 | 2018/10/08 20:10 | Hendrik Jebens v Gabriel Diaz Freire | 4-6,6-3,6-2 |
| ITF USA F27 | 2018/10/07 15:00 | Gabriel Diaz Freire v Teodor Giusca | 6-4,6-4 |
| ITF USA F27 | 2018/10/06 15:00 | Gabriel Diaz Freire v Keenan Mayo | 2-6,6-3,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/06/26 09:30 | Rishab Agarwal v Mario Mansilla Diez | 6-2,5-4 |
| UTR Pro Tennis Series Barcelona | 2021/06/25 08:00 | Ervin H Eminefendic v Mario Mansilla Diez | 4-6,6-2,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/06/23 08:00 | Constant De La Bassetiere v Mario Mansilla Diez | 6-1,5-1 |
| UTR Pro Tennis Series Barcelona | 2021/06/22 09:30 | Marcelo Zormann v Mario Mansilla Diez | 7-5,6-3 |
| UTR Pro Tennis Series Barcelona | 2021/06/21 08:00 | Mario Mansilla Diez v Alvaro Bueno Gil | 6-2,4-6,5-3 |
| ITF - M15 Marbella | 2021/05/25 09:00 | Max Alcala Gurri v Mario Mansilla Diez | 6-2,6-4 |
| ITF - M15 Valldoreix | 2021/05/09 14:00 | Alvaro Lopez San Martin v Mario Mansilla Diez | 6-3,6-0 |
| ITF - M15 Majadahonda | 2021/05/03 12:00 | Arthur Fils v Mario Mansilla Diez | 7-6,6-2 |