| UTR Pro Tennis Series Barcelona | 2021/06/22 08:00 | Constant De La Bassetiere v Alvaro Bueno Gil | 6-4,6-4 |
| UTR Pro Tennis Series Barcelona | 2021/06/20 07:00 | Constant De La Bassetiere v Marcelo Zormann | 6-7,1-5 |
| ITF M15 Antalya | 2021/06/08 07:00 | Constant De La Bassetiere v Hasan Ibrahim | 4-6,6-3,9-11 |
| ITF M15 Antalya | 2021/06/07 09:55 | Vitali Shvets v Constant De La Bassetiere | 3-6,0-6 |
| ITF M15 Antalya | 2021/05/30 07:30 | Lorenzo Joaquin Rodriguez v Constant De La Bassetiere | 6-1,7-5 |
| ITF M15 Antalya | 2021/05/24 07:00 | Facundo Yunis v Constant De La Bassetiere | 6-0,6-2 |
| ITF M15 Antalya | 2021/05/23 07:00 | Antonio Caruso v Constant De La Bassetiere | 6-7,3-6 |
| ITF M15 Cairo | 2021/05/03 11:00 | Benedikt Emesz v Constant De La Bassetiere | 7-5,6-7,11-9 |
| 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 |
| ITF M15 Antalya | 2021/04/04 06:30 | Mario Mansilla Diez v Viacheslav Bielinskyi | 6-2,1-6,4-10 |
| ITF M15 Antalya | 2021/03/28 06:30 | Paul Woerner v Mario Mansilla Diez | 2-6,6-2,11-9 |
| ITF M25 La Nucia | 2021/03/14 08:00 | Carlos Lopez Montagud v Mario Mansilla Diez | 6-2,6-4 |