Stadium: Court 1 Round: 26 Ground: Clay
| Challenger Warszawa - Herredouble | 2021/08/29 10:50 | Verdugo/Reyes-Varela v Manafov/Matuszewski | 6-4,6-4 |
| Challenger Warszawa - Herredouble | 2021/08/28 15:20 | Manafov/Matuszewski v Lenz/Verbeek | 6-3,3-6,10-8 |
| Challenger Warszawa - Herredouble | 2021/08/28 11:30 | Manafov/Matuszewski v Romboli/Zielinski | 7-6,3-6,10-6 |
| Challenger Warszawa - Herredouble | 2021/08/27 15:25 | Menendez-Maceiras/Vrbensky v Manafov/Matuszewski | 4-6,6-4,2-10 |
| Challenger - Seville - Herredouble | 2021/09/09 18:35 | Doumbia/Reboul v Barranco Cosano/Martos Gornes | 7-6,3-6,8-10 |
| Challenger - Seville - Herredouble | 2021/09/08 09:00 | Doumbia/Reboul v Sanchez Jover/Vidal Azorin | 7-5,6-3 |
| Challenger Como Herredouble | 2021/09/01 11:25 | Kestelboim/Carabelli v Doumbia/Reboul | 6-4,7-6 |
| Challenger Barletta - Herredouble | 2021/08/26 14:45 | Bortolotti/Rodriguez v Doumbia/Reboul | 6-7,6-3,16-14 |
| Challenger Barletta - Herredouble | 2021/08/25 16:00 | Mejia/Quiroz v Doumbia/Reboul | 4-6,3-6 |
| Challenger Verona - Herredouble | 2021/08/21 16:00 | Margaroli/Oliveira v Doumbia/Reboul | 5-7,6-4,6-10 |
| Challenger Verona - Herredouble | 2021/08/20 14:20 | Doumbia/Reboul v King/Schnur | 6-3,7-6 |
| Challenger Verona - Herredouble | 2021/08/19 11:00 | Roveri Sidney/Zormann v Doumbia/Reboul | 3-6,2-6 |