Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| Challenger Braunschweig MD | 2021/07/07 15:15 | Drzewiecki/Zuk v Kuhn/Moeller | 6-3,7-5 |
| Challenger Sopot MD | 2018/08/02 09:00 | Drzewiecki/Zuk v Gonzales/Lammons | 3-6,1-6 |
| Challenger Sopot MD | 2018/07/31 14:35 | Orlov/Smirnov v Drzewiecki/Zuk | 4-6,6-3,6-10 |
| Challenger Mallorca MD | 2021/09/03 15:00 | Verdugo/Reyes-Varela v Drzewiecki/Martos Gornes | 6-7,6-4,8-10 |
| Challenger Mallorca MD | 2021/09/02 17:30 | Verdugo/Reyes-Varela v Chappell/Stalder | 7-6,6-2 |
| Challenger Mallorca MD | 2021/09/01 17:30 | Verdugo/Reyes-Varela v Cohen/Giotis | 6-0,6-2 |
| Challenger Warsaw MD | 2021/08/29 10:50 | Verdugo/Reyes-Varela v Manafov/Matuszewski | 6-4,6-4 |
| Challenger Warsaw MD | 2021/08/28 13:30 | Luz/Mansouri v Verdugo/Reyes-Varela | 6-4,3-6,4-10 |
| Challenger Warsaw MD | 2021/08/27 15:25 | Verdugo/Reyes-Varela v Margaroli/Oliveira | 6-4,7-6 |
| Challenger Warsaw MD | 2021/08/25 15:25 | Verdugo/Reyes-Varela v Guinard/Lamasine | 7-5,6-4 |
| Challenger Luedenscheid MD | 2021/08/20 16:40 | Sabanov/Sabanov v Verdugo/Reyes-Varela | 6-2,3-6,10-6 |