Stadium: Court 2 Round: 62 Ground: Clay
| ITF - M15 - Antalya | 2021/11/22 10:10 | Petr Bar Biryukov v Marko Pavicic | 7-6,6-3 |
| ITF - M25 Nur-Sultan | 2021/10/28 07:05 | Petr Bar Biryukov v Bogdan Bobrov | 6-7,3-6 |
| ITF - M25 Nur-Sultan | 2021/10/27 08:05 | Egor Agafonov v Petr Bar Biryukov | 4-6,3-6 |
| ITF - M25 Nur-Sultan | 2021/10/25 04:55 | Petr Bar Biryukov v Yerassyl Murat | 6-1,6-4 |
| ITF - M25 Nur-Sultan | 2021/10/21 05:00 | Filip Peliwo v Petr Bar Biryukov | 3-6,7-5,6-3 |
| ITF - M25 Nur-Sultan | 2021/10/20 07:50 | Yan Sabanin v Petr Bar Biryukov | 4-6,6-7 |
| ITF - M25 Nur-Sultan | 2021/10/18 09:00 | Petr Bar Biryukov v Mykyta Riepkin | 6-2,6-3 |
| ITF - M15 Kazaň | 2021/10/13 10:05 | Ivan Liutarevich v Petr Bar Biryukov | 2-6,7-5,6-1 |
| ITF - M15 - Antalya | 2021/11/14 06:30 | Gokberk Saritas v Besir Durguti | 6-3,6-1 |
| ITF - M25 Skopje | 2021/10/01 08:00 | Louis Wessels v Besir Durguti | 6-0,6-1 |
| ITF - M25 Skopje | 2021/09/29 09:00 | Besir Durguti v Obrad Markovski | 2-6,6-4,6-3 |
| ITF - M25 Skopje | 2021/09/28 09:55 | Giorgio Tabacco v Besir Durguti | 6-1,6-0 |
| ITF - M25 Skopje | 2021/09/27 12:05 | Besir Durguti v Pavle Daljev | 6-4,1-6,11-9 |
| ITF - M15 Pirot | 2021/09/19 11:00 | Paul Valsecchi v Besir Durguti | 6-2,6-3 |
| ITF - M15 Ulčinj | 2021/09/05 12:00 | Besir Durguti v Danilo Raicevic | 2-6,4-6 |
| ITF - M15 Ulčinj | 2021/09/01 07:55 | Besir Durguti v Aleksandar Tomas | 6-7,3-6 |