Stadium: M1 Round: 26 Ground: Clay
| Challenger Braunschweig MD | 2021/07/10 11:30 | Sabanov/Sabanov v Walkow/Zielinski | 4-6,6-4,4-10 |
| Challenger Braunschweig MD | 2021/07/09 10:00 | Sabanov/Sabanov v Sijsling/Smits | 6-1,6-2 |
| Challenger Braunschweig MD | 2021/07/07 15:50 | Sabanov/Sabanov v Gengel/Langmajer | 6-1,4-6,10-3 |
| Challenger Bratislava MD | 2021/06/10 09:00 | Luz/Matos v Sabanov/Sabanov | 6-2,6-3 |
| Challenger Bratislava MD | 2021/06/09 08:30 | Palovic/Pokorny v Sabanov/Sabanov | 2-6,5-7 |
| ATP Belgrade MD | 2021/05/27 12:55 | Sabanov/Sabanov v Erlich/Vasilevski | 3-6,6-3,11-13 |
| ATP Belgrade MD | 2021/05/26 15:50 | Delbonis/Sitak v Sabanov/Sabanov | 2-6,1-6 |
| ATP Belgrade MD | 2021/05/23 15:20 | Sabanov/Sabanov v Brkic/Cacic | 4-6,6-3,10-8 |