Stadium: Pista 4 Round: 28 Ground: Hardcourt outdoor
| 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 |
| Challenger Luedenscheid MD | 2021/08/19 16:00 | M-Maceiras/Romboli v Verdugo/Reyes-Varela | 3-6,6-3,12-14 |
| Challenger Mallorca MD | 2021/08/31 13:20 | Drzewiecki/Martos Gornes v Geerts/Roelofse | 7-6,6-2 |
| Challenger Warsaw MD | 2021/08/25 14:50 | Drzewiecki/Martos Gornes v Margaroli/Oliveira | 5-7,2-6 |
| Challenger Luedenscheid MD | 2021/08/18 09:00 | Drzewiecki/Martos Gornes v Sabanov/Sabanov | 5-7,2-6 |
| 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 |