Stadium: Court 3 Round: 62 Ground: Clay
| UTR Pro Tennis Series Pazardzhik | 2021/04/10 10:30 | Gergely Madarasz v Gabriel Donev | 4-6,6-3,6-0 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/09 11:30 | Gabriel Donev v Ronan Joncour | 5-7,3-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/07 09:30 | Gabriel Donev v Plamen Milushev | 7-5,6-3 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/06 08:30 | Gabriel Donev v Yanaki Milev | 6-2,5-1 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/05 13:00 | Constant De La Bassetiere v Gabriel Donev | 5-7,1-6 |
| ITF M15 Antalya | 2021/03/30 07:00 | Gabriel Donev v Diego A B Sanchez | 4-6,6-1,7-10 |
| ITF M15 Antalya | 2021/03/29 07:00 | Gabriel Donev v Stefanos Sakellaridis | 6-3,5-7,10-2 |
| ITF M15 Antalya | 2021/03/28 06:30 | Gabriel Donev v Mikail Alimli | 6-1,6-2 |
| ITF M15 Cairo | 2021/04/19 08:00 | Santiago De La Fuente v Juan P Canas Garcia | 6-3,6-2 |
| ITF M15 Cairo | 2021/04/18 07:00 | Edoardo Zanada v Santiago De La Fuente | 6-4,1-6,7-10 |
| ITF M15 Cordoba | 2021/04/06 14:45 | Santiago De La Fuente v Mariano Kestelboim | 2-6,1-6 |
| ITF M15 Villa Maria | 2021/03/30 13:55 | Francisco Llanes v Santiago De La Fuente | 5-7,6-0,10-7 |
| ITF M15 Villa Maria | 2021/03/29 12:30 | Santiago De La Fuente v Alan Postay | 6-2,6-0 |
| ITF M15 Cairo | 2021/01/11 08:00 | Santiago De La Fuente v Jaime Caldes | 6-4,3-6,5-10 |
| ITF M15 Cairo | 2021/01/10 08:00 | Nikita Kashirin v Santiago De La Fuente | 6-4,4-6,7-10 |
| ITF M15 Cairo | 2021/01/03 09:00 | Santiago De La Fuente v Maxence Beauge | 5-7,3-6 |