Stadium: Court 18 Round: 25 Ground: Clay
| ITF - M15 Opatija | 2021/03/24 09:00 | Matteo Arnaldi v Basso, Andrea | 6-2,6-4 |
| ITF - M15 Rovinj | 2021/03/19 12:00 | Basso, Andrea v Giovanni Fonio | 6-7,1-6 |
| ITF - M15 Rovinj | 2021/03/18 10:30 | Alex Rybakov v Basso, Andrea | 6-1,2-6,5-7 |
| ITF - M15 Rovinj | 2021/03/17 10:35 | Fermin Tenti v Basso, Andrea | 1-6,1-6 |
| ITF - M15 Porec | 2021/03/09 12:30 | Galoppini, Davide v Basso, Andrea | 6-2,6-2 |
| ITF - M15 Antalya | 2021/02/16 07:00 | Basso, Andrea v Aaron Cohen | 6-7,7-5,5-10 |
| ITF - M15 Antalya | 2021/02/14 12:00 | Basso, Andrea v Jotovski, Tomislav | 6-4,6-2 |
| ITF - M15 Antalya | 2021/02/07 06:00 | Basso, Andrea v Alex M Pujolras | 4-6,2-6 |
| Challenger - Oeiras | 2021/04/09 14:55 | Goncalo Oliveira v Cacao, Tiago | 7-5,6-2 |
| Challenger - Oeiras | 2021/04/08 13:00 | Zverev, Mischa v Cacao, Tiago | 3-6,6-1,6-7 |
| Challenger - Oeiras | 2021/04/06 10:35 | Cacao, Tiago v Tristan Lamasine | 6-2,6-4 |
| Challenger - Oeiras | 2021/04/02 12:00 | Cacao, Tiago v Zdenek Kolar | 3-6,2-6 |
| Challenger - Oeiras | 2021/04/01 12:00 | Moraing, Mats v Cacao, Tiago | 6-4,2-6,5-7 |
| Challenger - Oeiras | 2021/03/30 12:35 | Duckhee Lee v Cacao, Tiago | 3-6,4-6 |
| ITF - M25 Vale Do Lobo | 2021/03/10 11:25 | Cacao, Tiago v Heyman, Christopher | 3-6,2-6 |
| ITF - M25 Faro | 2021/03/03 13:40 | Kuzey Cekirge v Cacao, Tiago | 6-4,5-7,6-2 |