Stadium: Court 9 Round: 27 Ground: Hardcourt outdoor
| Challenger Istanbul MD | 2021/09/15 13:25 | Balaji/Moriya v Tseng/Wu | 6-4,6-1 |
| Challenger Istanbul MD | 2021/09/15 14:00 | Grenier/Muller v Cerretani/Fallert | 1-6,5-7 |
| Challenger Banja Luka MD | 2021/09/10 11:00 | Cerretani/Fallert v Sancic/Serdarusic | 6-7,3-6 |
| Challenger Banja Luka MD | 2021/09/09 09:00 | Cozbinov/Echargui v Cerretani/Fallert | 6-7,5-7 |
| Challenger Banja Luka MD | 2021/09/07 14:20 | Pozzi/Weis v Cerretani/Fallert | 4-6,6-7 |