Stadium: Court 16 Round: 62 Ground: Clay
| ITF M15 Majadahonda | 2021/05/03 12:00 | Arthur Fils v Mario Mansilla Diez | 7-6,6-2 |
| ITF M15 Majadahonda | 2021/05/02 13:15 | Nicolas Moreno De Alboran v Arthur Fils | 1-6,1-6 |
| ITF M15 LPD Gran Canaria | 2021/04/27 09:00 | Timofey Skatov v Arthur Fils | 6-4,6-4 |
| ITF M25 Angers | 2021/04/22 15:25 | Chun Hsin Tseng v Arthur Fils | 6-1,7-5 |
| ITF M25 Angers | 2021/04/20 13:10 | Georgii Kravchenko v Arthur Fils | 4-6,6-2,3-6 |
| ITF M25 Reus | 2021/04/15 08:00 | Shintaro Mochizuki v Arthur Fils | 6-4,6-4 |
| ITF M25 Reus | 2021/04/14 08:00 | Alvaro Lopez San Martin v Arthur Fils | 6-3,4-6,3-6 |
| ITF M25 Reus | 2021/04/13 07:30 | Arthur Fils v Diego A B Sanchez | 7-5,6-7,10-7 |
| ITF M15 Majadahonda | 2021/05/03 12:00 | Goncalo Falcao v Carlos Lopez Montagud | 0-6,3-6 |
| ITF M15 Majadahonda | 2021/05/02 13:15 | Mario G Fernandez v Carlos Lopez Montagud | 1-6,2-6 |
| ITF M15 Cairo | 2021/04/21 15:05 | Santiago De La Fuente v Carlos Lopez Montagud | 6-4,2-6,4-6 |
| ITF M15 Cairo | 2021/04/16 08:30 | Carlos Lopez Montagud v Daniel Michalski | 3-6,6-3,4-6 |
| ITF M15 Cairo | 2021/04/14 15:10 | Carlos Lopez Montagud v Alexis Musialek | 5-7,7-6,6-3 |
| ITF M25 La Nucia | 2021/03/15 08:30 | Carlos Lopez Montagud v Pol Amoros Ramos | 4-6,6-4,15-17 |
| ITF M25 La Nucia | 2021/03/14 08:00 | Carlos Lopez Montagud v Mario Mansilla Diez | 6-2,6-4 |
| ITF M15 La Nucia | 2021/03/10 09:30 | Carlos Lopez Montagud v Carlos Sanchez Jover | 6-7,2-6 |