Stadium: Court 1 Round: 28 Ground: Hardcourt outdoor
| ITF - M15 Almada | 2021/07/09 08:30 | Fabio Coelho v Andrey Chepelev | 6-2,6-3 |
| ITF - M15 Almada | 2021/07/08 11:50 | Fabio Coelho v Egor Noskin | 6-3,6-2 |
| ITF - M15 Almada | 2021/07/06 10:30 | Tiago Cacao v Fabio Coelho | 6-7,4-6 |
| Challenger - Oeiras | 2021/05/23 14:15 | Fabio Coelho v Michael Geerts | 5-7,4-6 |
| ITF - M15 Monastir | 2021/05/13 09:50 | Jeremy Beale v Fabio Coelho | 4-6,6-4,6-3 |
| ITF - M15 Monastir | 2021/05/10 12:30 | Fabio Coelho v Dong Ju Kim | 6-4,6-2 |
| ITF - M15 Monastir | 2021/05/10 08:00 | Zachary Svajda v Fabio Coelho | 6-7,3-6 |
| ITF - M15 Monastir | 2021/05/09 10:00 | Cristian Campese v Fabio Coelho | 1-6,0-6 |
| ITF - M15 Almada | 2021/07/09 10:20 | Joao Lucas Reis da Silva v Diego F Flores | 6-4,7-6 |
| ITF - M15 Almada | 2021/07/08 12:30 | Joao Lucas Reis da Silva v Daniel Batista | 6-2,6-3 |
| ITF - M15 Almada | 2021/07/06 10:30 | Joao Lucas Reis da Silva v Kuzey Cekirge | 6-1,6-3 |
| ITF - M25 Haga | 2021/07/01 12:10 | Jelle Sels v Joao Lucas Reis da Silva | 6-3,6-3 |
| ITF - M25 Haga | 2021/06/30 10:00 | Niels Visker v Joao Lucas Reis da Silva | 6-4,4-6,4-6 |
| ITF - M25 Alkmaar | 2021/06/22 17:00 | Joao Lucas Reis da Silva v Jelle Sels | 5-7,1-6 |
| ITF - M15 Antalya | 2021/06/16 14:05 | Joao Lucas Reis da Silva v Fermin Tenti | 2-6,5-7 |
| ITF - M15 Antalya | 2021/06/10 09:10 | Joao Lucas Reis da Silva v Francisco Comesana | 4-6,6-7 |