Round: 27 Ground: Hardcourt outdoor
| Challenger Mallorca - HD | 2021/08/31 13:20 | Drzewiecki/Martos Gornes v Geerts/Roelofse | 7-6,6-2 |
| Challenger - Warschau - HD | 2021/08/25 14:50 | Drzewiecki/Martos Gornes v Margaroli/Oliveira | 5-7,2-6 |
| Challenger - Lüdenscheid - HD | 2021/08/18 09:00 | Drzewiecki/Martos Gornes v Sabanov/Sabanov | 5-7,2-6 |
| Challenger Milan - HD | 2021/06/22 16:45 | Drzewiecki/Martos Gornes v Romboli/Schnur | 4-6,6-7 |
| Challenger - Aix-en-Provence - HD | 2021/06/18 12:00 | Galloway/Lawson v Drzewiecki/Martos Gornes | 6-3,7-5 |
| Challenger - Aix-en-Provence - HD | 2021/06/17 15:45 | Drzewiecki/Martos Gornes v Romboli/Vega Hernandez | 6-3,3-6,12-10 |
| Challenger - Aix-en-Provence - HD | 2021/06/16 09:00 | Drzewiecki/Martos Gornes v Cuevas/Varillas | 7-5,6-2 |
| Challenger - Lyon - HD | 2021/06/08 08:00 | Drzewiecki/Martos Gornes v Walkow/Zielinski | 6-4,5-7,7-10 |
| Challenger Mallorca - HD | 2021/08/31 13:40 | Mejia/Quiroz v Gojo/Zuk | 5-7,5-7 |