Stadium: Court 1 Round: 26 Ground: Clay
| Challenger Milan MD | 2021/06/22 16:45 | Drzewiecki/Martos Gornes v Romboli/Schnur | 4-6,6-7 |
| Challenger Aix en Provence MD | 2021/06/18 12:00 | Galloway/Lawson v Drzewiecki/Martos Gornes | 6-3,7-5 |
| Challenger Aix en Provence MD | 2021/06/17 15:45 | Drzewiecki/Martos Gornes v Romboli/Vega Hernandez | 6-3,3-6,12-10 |
| Challenger Aix en Provence MD | 2021/06/16 09:00 | Drzewiecki/Martos Gornes v Cuevas/Varillas | 7-5,6-2 |
| Challenger Lyon MD | 2021/06/08 08:00 | Drzewiecki/Martos Gornes v Walkow/Zielinski | 6-4,5-7,7-10 |
| Challenger Oeiras MD | 2021/05/26 12:25 | Borges/Cabral v Drzewiecki/Martos Gornes | 7-6,6-7,11-9 |
| Challenger Biella MD | 2021/05/21 15:25 | King/Lenz v Drzewiecki/Martos Gornes | 3-6,6-3,11-9 |
| Challenger Biella MD | 2021/05/20 13:30 | Fratangelo/Krueger v Drzewiecki/Martos Gornes | 2-6,4-6 |
| Challenger Meerbusch MD | 2021/08/12 10:00 | Walkow/Zielinski v Sabanov/Sabanov | 7-6,6-4 |
| Challenger Meerbusch MD | 2021/08/10 13:45 | Bobrov/Safiullin v Sabanov/Sabanov | 2-6,6-7 |
| ATP Umag MD | 2021/07/23 18:50 | Brkic/Cacic v Sabanov/Sabanov | 6-1,6-2 |
| ATP Umag MD | 2021/07/22 15:30 | Sabanov/Sabanov v Dzumhur/Sancic | 7-5,6-0 |
| ATP Umag MD | 2021/07/19 18:45 | Martinez/Sitak v Sabanov/Sabanov | 6-3,6-7,6-10 |
| 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/Zielinski | 4-6,6-4,4-10 |