Stadion: Court 6 Round: 44 Ground: Hardcourt outdoor
| ITF - M15 - Sozopol | 2021/10/03 09:00 | Berk Ilkel v Enes Donmezer | 3-6,7-6,10-7 |
| Challenger - Istanbul | 2021/09/12 09:50 | Berk Ilkel v Alexander Shevchenko | 1-6,3-6 |
| ITF - M15 - Novi Sad | 2021/08/02 08:00 | Berk Ilkel v Milan Drinic | 2-6,1-6 |
| ITF - M15 - Novi Sad | 2021/07/25 12:00 | Aleksa Mardjonovic v Berk Ilkel | 6-2,7-5 |
| ITF - M15 - Monastir | 2021/06/27 09:00 | Berk Ilkel v Brandon Lam | 6-2,6-7,5-10 |
| ITF - M15 - Monastir | 2021/06/20 08:00 | Takashi Saito v Berk Ilkel | 6-2,6-3 |
| ITF - M15 - Monastir | 2021/06/13 10:00 | Berk Ilkel v Aidan Mayo | 4-6,6-2,5-10 |
| ITF - M15 - Monastir | 2021/05/20 11:25 | Gustavo Heide v Berk Ilkel | 7-5,6-4 |
| ITF - M15 - Sozopol | 2021/10/04 08:00 | S Mert Ozdemir v Plamen Milushev | 2-6,6-3,5-10 |
| ITF - M15 - Sozopol | 2021/10/03 10:30 | Amit Cohen v Plamen Milushev | 4-6,3-6 |
| ITF - M15 - Sozopol | 2021/09/15 07:00 | Plamen Milushev v George Tsivadze | 4-6,3-6 |
| ITF - M15 - Sozopol | 2021/09/14 07:00 | Plamen Milushev v Samuil Konov | 6-4,6-3 |
| ITF - M15 - Sozopol | 2021/09/13 07:00 | Plamen Milushev v Nikola Kolyachev | 6-4,6-3 |
| UTR Pro Tennis Series - Sofia | 2021/08/30 08:30 | Plamen Milushev v Dian Nedev | 4-6,2-5 |
| UTR Pro Tennis Series - Pazardzhik | 2021/07/18 09:00 | Yanaki Milev v Plamen Milushev | 3-6,6-6 |
| UTR Pro Tennis Series - Pazardzhik | 2021/07/17 12:00 | Iliyan Radulov v Plamen Milushev | 6-3,1-6,2-6 |