Stadium: Court 2 Round: 26 Ground: Clay
| ITF M15 Bratislava | 2021/08/17 10:30 | Peter Nagy v Marat Sharipov | 1-6,2-6 |
| ITF M15 Sofia | 2021/07/05 14:00 | Mihai Razvan Marinescu v Marat Sharipov | 7-5,6-7,10-8 |
| ITF M15 Sofia | 2021/07/05 08:00 | Marat Sharipov v Bogdan Pavel | 6-2,6-3 |
| ITF M15 Sofia | 2021/07/04 10:30 | Radoslav Shandarov v Marat Sharipov | 3-6,3-6 |
| ITF M25 Belgrade | 2021/06/27 09:00 | Dusan Obradovic v Marat Sharipov | 6-3,6-1 |
| ITF M15 Shymkent | 2021/06/02 06:55 | Marat Sharipov v Edoardo Lavagno | 1-6,4-6 |
| ITF M15 Shymkent | 2021/05/25 10:25 | Evgeny Philippov v Marat Sharipov | 7-6,4-6,7-5 |
| ITF M15 St Petersburg | 2021/04/16 08:00 | Marat Sharipov v Savriyan Danilov | 4-6,4-6 |
| ITF M15 Bratislava | 2021/08/18 09:35 | Vasil Kirkov v Franco Roncadelli | 5-7,6-2,6-2 |
| ITF M15 Frederiksberg | 2021/08/06 10:50 | Markus Eriksson v Vasil Kirkov | 6-4,6-3 |
| ITF M15 Frederiksberg | 2021/08/05 08:00 | Sandro Kopp v Vasil Kirkov | 6-4,3-6,1-6 |
| ITF M15 Frederiksberg | 2021/08/04 08:00 | Marius Ruzgas v Vasil Kirkov | 2-6,2-6 |
| ITF M15 Vejle | 2021/07/30 07:55 | Karl Friberg v Vasil Kirkov | 6-2,7-6 |
| ITF M15 Vejle | 2021/07/27 12:20 | Adrian Oetzbach v Vasil Kirkov | 7-5,3-6,3-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/18 07:30 | Vasil Kirkov v Valentin Vanta | 6-3,7-5 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/17 07:00 | Vasil Kirkov v Adriano Dzhenev | 6-3,6-2 |