Stadium: Grandstand Round: 26 Ground: Clay
| ATP Bastad MD | 2021/07/13 13:10 | Arends S / Pel D v Martinez/Sitak | 6-1,6-4 |
| Challenger Salzburg MD | 2021/07/06 15:00 | Martinez/Sitak v Bagnis F / Galdos S | 4-6,2-6 |
| ATP Hamburg MD | 2021/07/15 12:00 | Cerretani/Verdugo v Sabanov/Sabanov | 6-4,6-3 |
| ATP Hamburg MD | 2021/07/14 13:45 | Sabanov/Sabanov v Gille/Sharan | 6-3,6-4 |
| Challenger Braunschweig MD | 2021/07/10 11:30 | Sabanov/Sabanov v Walkow S / Zielinski J | 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 M / Langmajer D | 6-1,4-6,10-3 |
| Challenger Bratislava MD | 2021/06/10 09:00 | Luz O / Matos R 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 J / Vasilevski A | 3-6,6-3,11-13 |