Stadium: Court 1 Round: 26 Ground: Hardcourt indoor
| Challenger Losinj MD | 2021/10/23 10:00 | Martin/Weissborn v Cerretani/Fallert | 6-3,6-4 |
| Challenger Losinj MD | 2021/10/21 13:00 | Cerretani/Fallert v Chandrasekar/Prashanth | 7-5,6-3 |
| Challenger Losinj MD | 2021/10/19 14:05 | Cerretani/Fallert v Petrovic/Sabanov | 3-6,7-6,10-3 |
| Challenger Napoli MD | 2021/10/08 12:40 | Basic/Serdarusic v Cerretani/Fallert | 6-4,6-4 |
| Challenger Napoli MD | 2021/10/07 13:30 | Berrettini/Brancaccio v Cerretani/Fallert | 3-6,7-6,6-10 |
| Challenger Istanbul MD | 2021/09/17 11:55 | Albot/Cozbinov v Cerretani/Fallert | 7-6,6-3 |
| Challenger Istanbul MD | 2021/09/16 12:35 | Balaji/Moriya v Cerretani/Fallert | 6-3,6-7,7-10 |
| Challenger Istanbul MD | 2021/09/15 14:00 | Grenier/Muller v Cerretani/Fallert | 1-6,5-7 |