Stadium: Pista 2 Round: 27 Ground: Clay
| Challenger Murcia MD | 2021/09/28 10:30 | Brancaccio/Cobolli v Chandrasekar/Sureshkumar | 6-2,7-6 |
| Challenger Biel MD | 2021/09/23 15:55 | Manafov/Matuszewski v Huesler/Stricker | 5-7,6-7 |
| Challenger Biel MD | 2021/09/21 13:20 | Moraing/Novak v Manafov/Matuszewski | 6-7,3-6 |
| Challenger Szczecin MD | 2021/09/14 16:50 | Manafov/Matuszewski v Doumbia/Reboul | 6-4,3-6,6-10 |
| Challenger Warsaw MD | 2021/08/29 10:50 | Verdugo/Reyes-Varela v Manafov/Matuszewski | 6-4,6-4 |
| Challenger Warsaw MD | 2021/08/28 15:20 | Manafov/Matuszewski v Lenz/Verbeek | 6-3,3-6,10-8 |
| Challenger Warsaw MD | 2021/08/28 11:30 | Manafov/Matuszewski v Romboli/Zielinski | 7-6,3-6,10-6 |
| Challenger Warsaw MD | 2021/08/27 15:25 | Menendez-Maceiras/Vrbensky v Manafov/Matuszewski | 4-6,6-4,2-10 |